there's nothing in there that says theres health regen. Or confirming it in anyway. The title of this thread, and video are sensationalistic.
The original article makes it clearer.
"I can’t go into too many details right now, but in terms of drawing from first person and third person shooting mechanics there is this covering system. It’s not like you’re covering yourself from a shower bullets, but there are some natural environments where you can recover your HP and then go back into battle. There are some other weapon related aspects that I will be able to reveal later on."
Anyway this isn't necessarily a bad thing.