No, God is good when we get Lei, Nature Girl, Zafina, and yes, even Nina's sister who must not be named back in the roster. These balancing details are merely common sense.
That's because it's not a tier list. It's a "Tell us what underused characters we should play more often by putting them smack-dab in the middle tier" list.
(cont.) The problem with this is addressing how to balance out tech once it's discovered. And as long as it remains ignored you get a scenario like with DOA5.
I believe the appeal for some lies in seeing rewards reaped for knowing and understanding how to play two completely different characters and utilizing both of their strengths to create a new kind of tech altogether. When combined with mechanics unique to the tag system certain shortcomings from...