Being a champion doesn't mean that you can't be rated higher than you deserve to be. I do believe there's the possibility of her rebounding and winning her championship back if she puts full concentration and effort into it, so we certainly shouldn't write her just yet, but I'm also amused by all the disillusioned Ronda fanboys (and fangirls) that are spinning every possible excuse in the book as to why she got schooled the other night.
I always compared her to Mike Tyson - She has skills, but her weak competition + media hype and creation made her out to be much more invincible than she really was, and the second she stepped into the ring (or octagon, I should say) with someone who had at least above-average skills, she got exposed. How she bounces back from this and fares in the rematch will show her true fortitude as a fighter.