My guess is there are a lot of Figma employees who would rather not be working for Adobe, regardless of whatever incentives they get in the deal. It's hard to overstate how little regard software designers have for Adobe.
It gives me whiplash to see Sean Parent's deeply technical public talks on Adobe's experiences with C++, and Adobe's disdain for customers (and presumably other programmers' disdain for Adobe).
Well they wont all be massive now that mostly VCs and sometimes founders soak up all the benefits from an acquisition before the regular employees get much.
Well, good for the founders and investors anyways, who knows how many employees had meaningful holdings that outweigh the hurt of being integrated into Adobe