There was a reason it was abandoned.
There's lots of things in PF2 5th edition gamers "are not used to".
To me, few of those are warranted. In too many cases, it feels like Paizo designed PF2 in isolation, failing to take into account what people have gotten used to since 2015.
You know, just gonna throw this out there, I've sort of picked up from a few places in your posts that you would rather not be playing pf2e- and I respect that, but not everyone is in agreement with you about the superiority of the system, and I say this as someone who was
very into 5e, and has no attachment to any system of DND prior to 4e.
5e has its flaws, and one major criticism that could be levied against it is: why stop there? sure its very successful but it has the benefits of being a household name in its own right, critical role, the publicity of it as a 'redemption story' from 4e (which is nuts to me, given how much I love that game.)
But other games like dungeon world, or 13th age are even more streamlined- and that seems like what many of the people getting into 5e atm want, even
greater simplicity- I have players who basically ignore their spell descriptions in 5e to try and improvise the title of the spell into whatever and all I can think about is- wouldn't they be just great in a PBTA style game? Why are they playing this watered down wargame?
I suspect that as they mature as players, and they start to become veteran players in their own right, you're going to see them split off into either more rules lite games that free them from the shackles of rules, or into more crunchy games (like our very own PF2e) that offer more mechanical engagement. I wouldn't be surprised if DND followed them into the more rules lite territory, functionally making the next edition of the game an entirely different genre than PF2e.
But even if it doesn't, Paizo doesn't need to duplicate the size of 5e's audience, it could honestly do quite well simply by being a crunchier alternative and absorbing the new players who develop a taste for crunch as the new wave of fans mature.
Copycatting 5e is not a recipe for success, because those players already have 5e.