Have to disagree. She's been a boxer for what, a decade? I don't think she has enough time on her athletic clock to suddenly develop world class TDD. I don't do MMAth, but I do watch/remember all of the fights I can on fighter A and then do fighter B to try to envision what it would look like. I have for these two and prognosis is not positive.
Rousey is younger and a horrific style match up for Holm. If they ever cross paths, Holly would be finished in the first round. Not exactly a bold statement I know, but there are people that think Dana is protecting Rousey from Holm who I assume have only ever seen her KO gif.
I mean, I can't disagree. It's not going to be easy for her.
But her boxing skills give her something unique that the other women don't have. If she can develop it in a way that allows her to maintain distance and counter Rousey, then she has a real chance- her striking is something no one in WMMA has. But it is a long shot, I do agree.
It's still a better shot than most of the WMMA roster though, who are basically weaker and less skilled version of Rousey. They might be more well rounded than Holm, but they really don't have anything to threaten with.
I think there is a very, very real possibility that Cyborg and Holm are both stopped relatively easily in the first by Rousey. I'd be expecting it to happen- but I wouldn't be completely shocked if it didn't. Not entirely dissimilar to JDS/Cain- I'd be expecting Cain to win, but if JDS pulled out a big shot it wouldn't surprise me.