It's actually more than that. Liz doesn't have a reliable way of getting damage or pressure, so she has to "gimmick" her way. That can work but not every time, so more often than not there will be matches where you just can't gimmick someone and forced to play a more solid game which is where she's lacking. I know this is also not related but even Okusan dropped her for Sho, he even said he wans't so sure about Liz in P4U2 anymore because the changes didn't really help her that much