No it means it can't be good, full stop. The default RPG Maker Movement and Collision systems are in no way conducive to action gameplay. It is fallback of the engine itself. Fuck it. I'll download it later just to prove you wrong.
Do you really need to assume that it must be action-based gameplay to begin with?
DBZ games can be just as fun when played entirely turn-based if you know how to design it. (In fact, if I were the one making a DBZ SDK, I would model it after the turn-based RPGs made by Nippon Ichi. The RPGs they make have stats and leveling systems that always reminded me of DBZ, along with everything out there that is similar to DBZ. With the DBZ SDK I designed, people would be able to replace the default DBZ graphics with ones from Bleach/Naruto or One Piece or whatever and nobody would be none the wiser.)