He is probably one of the only characters that honestly has nothing really going for him?! Even D’Vorrah (she is debated to be one of the bottom characters too) has some interesting setups despite all her problems. Kotal basically has f34, f2, f4 and d4. That’s it, those buttons are pretty ok. Everything else is pretty lackluster or just plain bad. Okayish dmg (if u do not want to put your opponent in the corner that is because u will need to use the grab), bad zoning, unsafe setups, big hurtbox, wonky hitboxes, slow frames, unsafe strings. There is simply no reason to pick him up at the moment, unless you just want to! That’s literally the only reason.
Edit, I forgot to mention this: I feel like kotal has a lot of tools that should be good but aren’t. They are simply not reliable for the most part and do not work in situations where you would want/need them to work. That’s why u need to rely on the things listed above, which isn’t a whole lot tbh.