Take a look at Joanna Jędrzejczyk. She does not accept being on her back, she is moving her hips right away and try to get to the cage where she can wall walk. If your BJJ is not good and you regain guard, it means you are complacent losing the round (or fight) since you will rather not submit the guy on top. Or you pray for the fighter on top to do nothing so that you are stood up. I hate seeing guys regain guard and be happy with themselves, doing nothing. If you regain guard, you better try all sorts of subs. Protecting yourself from being hit is not enough. The MMA fight is too short to be complacent while in guard IMO.