The only gripe with jump attacks is how fast and long active frames they carry currently, thesejump will always be a problem as long as almost any character is able to to jump with earlier attacks and still hit players trying to crouch to avoid in order to trip guard punish.
As some of walkspeeds are already bad enough, backdashes are already bad enough, there are angles where some attacks cannot be anti-aired, or neutral ducked, a player that knows breaking will take your stamina will put himself into position to do this if the said character can't space just by walking, cannot duck, or run under and some moves to anti-air might take longer than pressing a single button.
NRS just needs to reduce the active frames of every stupid fast jump attack, specially the jump kicks, these need to be minus if done that earlier, and need to be neutral crouched if done that earlier too, its sega genesis UMK3 all over again.
Backdashes need to to cover ground just as cyrax or Kano does, and recover just as fast, some characters could use a walkspeed buff.