I don't know that I completely agree with Wenders but, I think he's certainly correct in a lot of what he says, to my thinking. Printing, and the lack of it, is a big factor in this..
Some years ago I attended an exhibition in Arles. It was made of dozens of thousands of small anonymous printed color photos from the 1970s and 1980s, all put in the same room. That made a huge pile of several cubic meters. Those photos were of those nobody used to look at for more than a few seconds when they used to come from the lab or out of the Polaroid toy. Their life as printed photographs was the exact same as the digital snaps made nowadays. The only difference is the format. Printed vs electronic.
Smartphones haven't changed anything. There are people taking photographs and looking after what their photographs become once taken, and there are people taking snaps and forgetting them very quickly. The "social networks" are just an anecdote.
If "the good old times" had been so "good", we wouldn't be finding some finished yet undeveloped films in cameras or tons of abandoned printed photos lots and albums at the fleas markets.
Wenders is right to say that things have changed. But what he doesn't want to see is that things have changed because he has now become old, and not only in his body it seems.
Some years ago he got paid for a Leica M8 commercial in which he praised the new "digital age"... Hahaha.
I like him very much as a film maker. "Alice in the cities" being my favorite among all of his movies, and I have carefully seen them all several times. I even met him in the flesh once. But that's a bit disappointing - if not frantic - to see that' he's now more or less in the camp of the old and grumpy men telling that disperaging "It was better before".
Some should watch the last interviews of Saul Leiter. He was alone, old and almost poor, his beloved Soames Bantry had died long ago, but he was not moaning and living in the past because of smartphones and digital photography.