Salty thread.
That being said, I hate fighting/watching Zelda more than anyone in the previous PM demos. I don't know what it is exactly, but so much about her seems to clash with the rest of the cast. Almost all of her moves are mega-multi hit or have super hit-lag (something relatively rare in the first place). Multihit moves that link together are fine (to an extent) when applied sparingly if they happen quickly (drills or multihit moves with two or three hits), but I think people get frustrated when they have to spend so much time getting hit by a single move (again, a good portion of her moves do this). I think that gripe is in the same vein of those who have a problem with Ivysaur, who has long-lasting multihit moves on his nair, f-tilt, and side-b. Moves like those allow the benefactor too much time to pause and think while at the same time really staggering the pace of the match, which isn't really a thing other characters have outside of throws. I've seen far too many people land forward-tilt into up-smash (what). That physics manipulation thing she can do with her b while getting knocked back is weird as hell, and is just another defensive option she has that doesn't apply to anyone else. Her dins fires seem to be used much more as camping/recovery/approach forcing tool than things to combo into, which is a shame since I thought that was one of the coolest things about PM when I first discovered it. She seems like she would be slow on paper, but she has a number of high damaging/high knockback moves that come out quickly, and her up b allows her to be wherever she wants whenever she wants with a hitbox to cover her, making her difficult to read both on stage and while recovering. She also has great grabs.
It really is a chore to fight her, and watching PM Zeldas beat TOP Melee players using some of the fastest characters like Fox and Falcon (who should be able to easily dispatch a slow, floaty character if speed is truly her weakness) is kind of troubling. Not to take anything away from Zelda players putting in work, but if Zhime or Salem take Apex (which is entirely possible, as both are great players that really get the most out of their characters), I fear the reaction may be similar to Wizzrobe's Apex showing of 2.5 Sonic.
TLDR, I'm not saying Zelda is necessarily poorly designed, but I just don't think her current design meshes well with the rest of the cast. As I see it, this isn't a matter of variety, it's a matter of incompatibility.