I largely agree except that I do think the game passed her by. She refused to learn new skills or train with new people. She let Edmund build her ego and convince her she could strike as well as grapple. And a lot of people got caught up in that. Her judo skills aren't even questionable, but this is MMA, not judo. Armbars aren't enough to compete with well rounded fighters, and Holly proved it. Beyond her striking ability, Holly also trained at a good gym with intelligent coaches and worked on her game in every aspect.
What new skills did Ronda ever learn?
She had the potential to be much better than she was, but like too many others she never felt the need to evolve.