I agree with you except I don't think it's that binary. There's a lot of hiring going on at YC startups, so "everyone now knows and agrees on this take" is a considerable overstatement.
Here's where I do agree: (1) the impact of FAANG compensation is enormous, to such an extent that a lot of people (including on HN) simply refuse to believe what they hear about it, because it breaks their model of the world—even though those things are often true; (2) startups need to adjust to this. I've felt for years that the equity shift that took place from investors to founders needs to be followed up with a comparable shift in favor of early employees.
On the other hand: while this shift has been happening somewhat, it's surprising to me that it hasn't taken deeper hold yet, which makes me wonder what I'm missing. I would have thought, and it sounds like you think so too, that startups have little choice but to make this shift quickly or die from starvation for top talent. It's not playing out that way. Startups continue to thrive, even though there haven't been massive structural changes yet. (I'm looking at it through YC-colored glasses, which is a privileged position, but not one that's so dissociated from the larger ecosystem as to change this point.) It may not be thriving to the extent that FAANG is, with some exceptions—but that's because nothing is.