Unless you're a sword & shield user, most folks aren't going to take the time to sheathe and chug an earplugs potion between every roar.
Honestly I think it will depend on the monster this time around. Teostra for example has a very dangerous roar. It's fast, can't be rolled through with even evade+3 and he can combo you strait out of it with a claw swipe or charge. He also does a "super nova" attack everytime he goes out of rage mode. The attack has alot of cool down if you're out of the way so it's perfect for chugging a potion (it also frequently one shots you or nearly one shots you)