The issue at hand: GB AFTER A PARRY.
Im not saying remove the gb complettely. no. its a god mechanic. but FOR THE LOVE OF GOD, UBISOFT, remove the ability to GUARD BRAKE after a PARRY.
After a pary you should only be able to attack. this is why there is a hole bunch of meta turtling.
Motto: WHY ATTACK WHEN YOU CAN WAIT FOR AN ATTACK TO PARRY AND GB AND PUNISH AND REPEAT?