I really didn't expect Cyborg's stand up to cause that many problems to Gina, but Gina's overhand right (Which is Gina's best punch) looked slow and very weak compared to Cyborg's punches. It seemed like for every 1 punch Gina threw Cyborg threw 3 which Gina couldn't handle and ended up turtling up. Toward the end of the round I thought Gina was looking a little bit better. Using some nice jabs and movement to keep away from Cyborg's power and she would have probably made it to the second round if she had just pulled guard at the end instead of turtling up like she did.
I was wondering that too, but if you look at the fight you see that Cyborg rolled and Gina lost her full mount position. Gina looked over and saw her right leg was exposed for another possible submission attempt and stood up and backed off.
I was definitely surprised, but I think Gina is probably used to being able to control weaker fighters with just that head lock. Cyborg was just too strong and was able to push Gina right off which kept putting her in bad position and exposing her back.
