Regman caught those kicks but, without really having anything to back this up, I do rate him as a better athlete than Muniz. Just a visual comparison by me, nothing more, really. I know it's Herb Dean, but he does stand up Muniz a few times in his fight against Assis so it's not like he's a game-over beast on top. I'm not sure I have the technical know-how to really rate Arroyo's get-ups against Regman, but he did get up.
Henrique backing him up basically all fight, Arroyo still seemed to throw with volume and venom late so his cardio seems alright. Hard to have an opinion on Muniz' cardio. It seems similar to Arroyo's.
There might be something to the friend angle because, in a discussion elsewhere, I found out Assis went on to sub a high level fighter and we were all perplexed as to how that could happen (other than a Craig-Ankalaev scenario, because of course I had to find a way to bring Paul Craig into the conversation). I didn't take much of anything from the 0:37 armbar and 1:20 KO. Hypocritically, I took something from Muniz getting KO'd fast because buddy was a southpaw and Muniz looked clueless against it. And then a bunch of fast regional subs which are there. It's definitely his thing.
I'm being careful not to totally dismiss Muniz. He can absolutely spaz in there and cause a wobbly TD, into a scramble, and onto his back. The RNC loss for Arroyo is very concerning, yeah.