This may be the rose colored glasses of a T21 student, but I would interpret it more as a shot against Cardozo type schools where a big firm might show up and give callbacks to only one or two people.
But what I really think is that this is just one guy's temporary ramblings. Firms have put a lot of thought and research into whether the talent is better at the top of school X or the median of school Y. They aren't going to throw that away just for the sake of administrative efficiency.
I could be wrong, but I don't think ~V25 firms were really conducting meaningful OCI at Cardozo et. al. anyhow. Many top firms were, however, investing serious resources into ~T20-T30 schools. This article makes thing look pretty dim for those schools. The "good" (well, maybe "less bad") news is that I don't think you're screwed just because you go to the school ranked 21 instead of 20 or 19. I just think that, generally, this bodes poorly for every school across the board, and increasingly bad once you get around the 20s and below.
Along that note, I don't really get the "Paying sticker at *insert T14* just got more palatable" sentiment. This is bad news for everyone
. Maybe it makes you feel better about turning down a scholarship to BU or something, but there's nothing about the "dim future for young litigators" that makes the 200k I'm about to shell out any more palatable.