Honestly, yes.
Talking about SFV...
It's actually mostly rock/guitar-based. There's some electronic music, but overall it's pretty varied to be honest. I think the soundtrack was in general well received, compared to SF4.
Also, RASHIDOOOO
I mean, one would say the menu interface is pretty simple, workman like, even.
The in-game UI looks nice and most importantly is easy to read.
Necalli is honestly a really straight-forward design. He has a unique outline that makes him instantly recognizable. He has a simple color palette. He doesn't seem overdesigned to me. Compare him to some of the characters in Tekken 7 and he looks positively dull compared to the some of the weird shit that are the default costumes of Hwoarang and Heihachi.
Besides, there's all kinds of weird shit in SF3, if people like Necalli and Juri bother you. Necro, hello!?
I just don't see whatever it is you're seeing. Both SF3 and SFV use exaggerated, muscular proportions, and the same big hands/big feet design.
Man, I really don't want to dive into a whole diatribe on UX, but SF5 is all over the place. Just off the top of my head: their shop is a mess to navigate, the box navigation in the main menu is tedious, going through menus to choose your preffered character is convoluted, they lack necessary onboarding features for new players and modes that compliment that, and many mechanics are still hidden behind challenge mode tutorials that aren't properly explained. It's more than UI.
Regardless, i'm gonna open this up. I'm not comparing SF to Tekken. This is past Capcom to new Capcom and in my opinion the quality has dropped significantly.
When it comes down to it, I'm just not a fan of the new characters nor the general look of SFV. You call out the big feet aesthetic, but the reality is that those styles looked better in 2D than in 3D. I will admit, SF5 is an improvement over 4.
As for Necro:
It really comes down to how it's packaged. Necro is a strange character, but his design is quite original in context: An operatic orphan from Russia, kidnapped and experimented on in order to create a stretchy, electric fighter- two of the most outlandish character traits from SF2. Yet here, they're at least given a quality explanation.
Would his design work today? I'm not sure that people would buy the leather shorts, but otherwise I think he'd work fine in SFV. But the problems for him don't just end at costume- the entire aesthetic of SF3 is very anime and exaggerated. It can get away with more crazy designs because even at their craziest they're still very subdued and simple.