I'm not saying Rogan being mouthy is the reason it should be overturned. I'm saying it wouldn't surprise me if the UFC did.

“We’re gonna pay him like he won the fight,” White stated. “I would appeal it if I was him.”

With no sanctioning body for MMA in Brazil, any appeal of Yamasaki’s decision will go through Mark Ratner, the UFC’s president of regulatory affairs.
Sounds to me like they consider the blow accidental in the process of the final flurry and will react accordingly.