I've noticed and felt this trend, but I haven't ever seen it put so well or really connected the dots with figma & pretty rectangles.

I remember discussions over relative easy of use of gray box wireframes... and that led to better products.

Now I've got designers vibing monstrosities that would have fit right in in the Flash era, I guess in order to draw even nicer rectangles now that execs than wave at AI and get a design.