I think it's hilarious.
Part of it might be real.
Part of it is some of them want to take credit for it. Which is funny.
Part of it is-- you have to remember the forgies are intensely conformist at the heart. So if one guy likes something, and that guy has enough influence, they all have to pretend to like it.
Part of it is they are pretending to like it because they thinks it pisses you guys off, because many of you jackasses adopted a "hat of 4e" stance early.
But they probably looked at it like once.
Part of it is guys on the outside of the inner circle are confused about why they are supposed to like it and feel they are out of sync. Their conformity meters are malfunctioning!
Part of it actually is flavor of the week-ism with these guys.
Part of it is many (perhaps most) of these jackasses missed out entirely on 3E, yet spent the last decade "addressing D&D through design" without actually having ever played the current version of it or having any real knowledge of it-- Burning Wheel for example was designed and held up as a competitor to D&D3, despite the fact that Luke never played D&D3 or read it even once. So they would talk about "d20" while they actually were thinking about AD&D2e. So perhaps a few of them are either determined not to do that again, or they are just now finding out D&D has had this stuff in it for years now.
None of it matters, ultimately.