I could give you at least two objective reasons for why its stupid design and you knew it when you did it:
1 You land a charged heavy attack, and your reward is burning your enemy stamina plus another heavy attack, until there you could argument any excuses, but when you force this idiotic design character to literally release his enemy, walk back and make a quicktime animation, you are blatantly saying that you know that you have made a stupid thing and you could only balance it by removing the player control over his avatar.
2 Most high level players recognize that the character sucks in competitive 1v1, so you made an obnoxious hero for team matches and a trash one at 1v1 at the same time, guess what, that is not called balance, that is called bad design because you made an annoying experience for low to mid level players which are obviously like 80% of your population, for the excuse of it being a waste for the other 20%.
Also, a not objective reason for free: just check the amount of negative reviews your game has on steam all because of cancerion.