It would be nice to see Cyborg fight someone her own size and approximate skill level. However, I don;t think that because she has mostly fought smaller, less experienced girls, that she sucks and would be "exposed" if she fought a worthy adversary. She is obviously skilled in many areas. She is no longer the berserker she once was, and has grown a lot...er, but she has also grown a lot of muscle and popped more than once!
IMO, she has exposed HERSELF as a cheater. I just can't take her that seriously. Similar to Jon Jones/Anderson, whose legacies are now suspect and no longer in the running for GOAT status in many people's minds. I honestly don't care if she wins against a girl in a lower weight class-- that is furthermore not suspiciously buff and proven to be on the juice more than once. It is meaningless. If she wins against Holm, I cannot attribute it to superior skill on Cyborg's part.