I think the fact her trap can be triggerred by Yoru's clones, turn her from best senintel, to useless sentinel in proplay.
All her kit in defense revolve around setup a deathly trap and Yoru can just antistrat it with one spell making her useless when she should be strong. So a proplay team shouldn't play her because if thats happen their opponent will play Yoru after a couple of game and just antistrat her whole kit with a spell.
Hard counter shouldn't exist in Valorant because they are no draft and no swap