Even among people who run accelerators, incubators, and other types of programs, there is a lot of debate over where the lines begin, end, etc.
Instead of saying "incubators are bullshit" why not just saying "Doing bullshit is bullshit" since that seems to be the actual point of this post. Don't do unproductive stuff that doesn't actually advance your startup. Great. That advice is just as appropriate for outside of incubator people as those within an incubator.
For example, while reading this article I just kept getting distracted from the actual main point - many incubators just provide low cost office space. Is that bullshit? Many incubators aren't actually accelerators like the author seems to confuse the term with. Is that bullshit?
I remember reading an article from the New Yorker where they talked about making fun of wannabe authors who just sit around and do everything that authors are supposed to do except write. They called this "writering" and it seems like the author is trying to say the same thing about "startuping". Good. But that problem will always exist, regardless of whatever incubator you're in or not in.
So maybe we should focus on the actual problem instead of just blasting a straw man, hoping for clicks?