As soon as a label is affixed to a photo-style, it's doomed to be defined and re-defined by everyone who has an interest in the term, photography, or self-promotion. I shoot what interests me, be it on the streets of DC, on the dirt roads in a small town, in the grasses of meadows, on buses, trains or subways. I try not to call myself any special "type" of photographer. Maybe I'm just not a specialist.
Everybody who tries their hand at spontaneous, candid photography of this type thinks they know what street photography is, and some practitioners even agree with one another. For those that need to know what someone else thinks this term means, the explanation provided at the OP's blog-site is as good or as bad as many others I've seen.
I can't understand why someone would look at a series of photos (as was explained in the original post) and need someone to explain what the grouping meant, what they had in common that allowed this categorical distinction to be used to tie the images all together. The photos should just speak for themselves. That said, we are human, and we need to categorize.