I wonder if part of the problem is that he starts the post with the phrase "leadership problem". I just glided past that and read the rest, and I saw it as a framing of "we really may no longer be in a position to do this kind of thing". Whereas if you read his whole post as about a leadership problem, then anyone directly involved in Core dev could very reasonably take it as saying the kind of thing you mention here, and I have to entirely agree that that is between unhelpful and also really, really bad. Like I said to Matt, could be a perspective thing; and seeing some of the more heated exchanges going on over there, well, I can see that this is not super-productive ...