I watched the piece and read the response. The news piece looks like the typical kind of sensationalist fear mongering that unfortunately passes for "news" these days. What we have here are a bunch of older guys out with their cameras, being kind of nerdy, annoying and intrusive. Is that worthy of the 6 o'clock news? Really? Is it even that "suspicious?" Believe me, law enforcement officials WISH pedophiles and pornographers were that blatant. And for the record, anyone who thinks that guy was taking an "upskirt picture" clearly doesn't know what the term means (it's a rather specific fetish, and no, it is not a fetish of mine).
Most of my favourite photographs probably classify as street: I have little to no interest in looking at scenic views or pictures of buildings, or shots of peoples' cats or whatever. What is unique and powerful about the genre is its ability to capture private moments in public spaces: a moment of personal reflection, an unguarded look or gesture that occurs in full view of other people. Or the way it can place people in a certain relationship with their environment that causes the viewer to reconsider both. It's different than reportage or social documentary, and so requires a different approach. If you stop all of your subjects and ask them if you can take their picture, you may get a street portrait (a perfectly legitimate genre), but you don't get what I described above.
Undertaking this requires not only aesthetic sensitivity, but sensitivity to where you are, the society you live in, and the context in which you are taking pictures. A bulletin was recently sent around by my daughter's school warning of a suspicious individual spotted taking photos of the kids during recess. The individual was described as "a young Asian woman, in her early twenties, wearing a trench coat." Right. Draw your own conclusions, but I guarantee you she was an art school student, taking blurry shots of kids through a fence or something like that. Her naivety was astonishing: she clearly wasn't sensitive to prevailing social mores regarding photographing children, or wasn't thinking about how the context would definite her activity, or she just didn't care. Not very smart, in any case.
So too with the "weird" men in the news report. Showing up at the same location, week after week, with your posse of fellow nerd/hobbyist/photographers, blatantly working the crowd, focusing on people's legs or whatever, displays a remarkable lack of basic understanding about the social milieu in which one is working. Stupid, yes. Likely to produce great photographs? Unlikely IMO. Unethical? Come on. Photographing someone dying instead of trying to help them is unethical: these guys are simply annoying. Weird? Well, I thought the newscaster was the real weirdo in the whole thing, so there you go.