There are fights that I call totally wrong, but they don't really change the way I think about the sport, they just make me realize immediately that I've made an error. For example, I believed that Nate Diaz would beat Ben Henderson, but when Henderson was dominating, it wasn't making me question everything I think about these guys or about the sport, I just realized that I had completely underestimated Bendo's athleticism, strength, striking - I had effectively just underrated him quite severely. I still think Nate Diaz is an excellent lightweight (his performances against borderline top 5 guys Miller and Cerrone were brilliant), and I'd still favour him over a lot of good guys, even good wrestlers who don't possess Benson's special athleticism.
But there are other fights that I call equally wrongly, but that I cannot so easily make sense of. For example, I still can't really understand how easily/dominantly that Frank Mir beat Roy Nelson. That fight really did make me question everything. Considering everything I have seen of those guys before or since, I still don't really see the logic of how/why Frank beat him so comfortably. Sometimes this sport is just weird! And I realize I have my limitations in knowledge.