I'm not inclined to argue about his 'place' and importance in photography. Whatever he may have done to establish the medium is one matter, but it's altogether something separate from the comments about his images.
Personally, i don't really see the 'magnificence' in his work. I don't really care about the compositional rationales. To me, they often seem like exercises. If i don't get something from the image, it doesn't matter to me how or why it was created. And, to excuse technical issues because of the time period or because he was among the first to adopt a piece of machinery seems odd. If the image is the most important thing, you use whatever you have to use to get the image. It's like getting an unprintable/unpublishable neg, but saying it's excusable because the photographer shot it with a broken camera.
Essentially, the matter of focus/out of focus is only an issue if you don't otherwise value his imagery. I don't love his work, so the focus/softness problems are significant to me. If you find his timing and composition to be beyond reproach, you excuse the other qualities. But, there are plenty of other photographers working in similar, if not more stringent and demanding conditions, who did not publish or exhibit images with those characteristics. I love Koudelka and Boubat and Doisneau and Burri and Bravo, Erwitt, Franck, Morath.... Very rarely do i see technical problems in their work. I'm sure they experienced the same problems and used the same equipment. But, they edited more critically. Or, perhaps paid more attention during the process. Cartier-Bresson is a bigger name than any of the above. But, i don't think he was a better photographer.
If i do get "hung up on sharpness," it's A.) an individual assessment, particular to each image; B.) NOT the decision of the photographer, but something he was willing to 'live with;' C.) a detraction from what the image could/should have been. I'm just not willing to give the guy a pass on a picture just because of who he's supposed to be. If you were teaching a class, curating an exhibition, publishing a book or magazine, and were approached by a photographer with a portfolio of soft, out of focus photographs, or printed from under/overexposed negs, would you coddle him and say it's all okay? Would you publish them anyway? The guy caught someone jumping over a puddle. I just don't see what the big deal is there. THAT is his most famous image. And, now legions of rangefinder users chant his mantra - one that doesn't truly represent how he worked.
I'm guilty of falling for some of this. I have FOUR books i don't like. Because i'm trying to see what it is that inspires this legend. But, suggesting that i'm wrong for not liking him is just offensive. It's like saying you don't really understand color if you don't like Eggleston. Or fashion if i didn't think McQueen was a genius.... But, we're talking about a guy who photographed for 60 years, and it was all he did. He did it all over the world, with access to just about anything. He did it through the most tumultuous periods in the world's history. And, i still have not seen a single one of his photographs that truly represents a 'wow' moment in time for me.
Well I was gonna say that you gotta take Bresson into context and understand that it was 1930-50, that he was the first to use such equipment in such a manner and he pretty much put the small format on the map at a time when even medium format was called "miniature format". I was gonna say that then he went ahead and put street photography on the map, because maybe there was Brassai and a couple of others but nobody outside those circles even knew back then what street photography is. Then he went ahead and put photography on the map by making it so popular and forcing the art world to accept it as an equal art, because up to that point it was only considered as a bad substitute of painting. And he did that not only with his photos but also with his writings and his definition of photography which, believe it or not, he was the first person to give. Then he went ahead and introduced art into journalism by running Magnum and freeing its members from the burden of only making the photos that editors want to buy. Still pretty much the only agency that rolls this way: first make what you consider a good photo, then see if anyone wants to buy it. Bottom line, the guy singlehandedly revolutionalised photography. And i was gonna say that, by today's standards and compared to modern street/pj photographers his photography might seem a little emotionally detached, superficial or light in content, but it was 1950 for chrissakes and to this day, he is still the benchmark when it comes to composition and timing. And although some of his photos migh seem a little cliche today, in 1950 they were extremely original and he was the first to photographicaly explore all kinds of facets of humanity.
But its not even worth saying it. Because, of all the photographers that you might see exhibited in a museum like MoMA, Bresson is probably the easiest to understand and appreciate. There is no deep and meaningful concept, his photos are just pretty, well composed, highly decorative things. And if you cant even see that and you get hung up on sharpness or lack thereof, well, you may as well start shooting plates of food for some stock agency. Prefererably with bokeh.