I can already see this mechanic being a little frustrating, especially when you are in an intense fight. Imagine you are running for your life, trying to get away from some bandits, only to realize you were too tired to vault over a low wall. I can already hear the salty screams of people getting mad when they get killed during this animation. Instead, I would like to suggest [Also what other people are suggesting], that we "tumble" over the wall instead of failing to get over it. Simply making it take longer to stand up after tumbling over the wall. I'd rather at least be behind cover.