I wonder if the SA hate is for the mere idea of high-profile spherical keycaps, or just for SA in particular.
SA isn't perfect, but it's the only high-profile spherical family available. MT3 will be out soon-ish, and it has the potential to be superior in terms of keycap shapes, but it only offers dyesub legends which limits its appeal dramatically. So I'd say there are definitely legitimate reasons to find SA or MT3 disappointing, but the only reason to
hate either is if you hate high-profile sphericals as a concept.
And that's okay I suppose; I categorically dislike all cylindrical keycaps simply because they are so relentlessly prosaic and commonplace, so I can see how others might
resent dislike all high-profile sphericals for being too classy and sophisticated.