The only real Subseeder user we have right now is SMedicine... that counts as "horrifically short on". The same goes for mixed attackers, mixed walls (Yoshika and Lily White, that's it) and fast walls (uh, Aya?).
We do have some bulky attackers; rather than not having any, it's more like there are TOO MANY that we have no idea of how to use. Just look at half of the attack forms...
There are also too many puppets who only ever get use in one specific form. I've yet to see any Attack or Tech Medicines; that, and I only saw vanilla Medicine once, and the role she was playing in could've been done better by SMedicine, which means there probably wasn't much thought put into it.
Also, the general opinion about ~70% of the PC-98 characters is that they either suck, are completely outclassed or are just too hard to use/not worth the trouble. There are notable exceptions, like Konn, Mima, Sara, Magic Stones and Elis, but the fact stands that many of those characters are still completely unknown.