I wouldn’t argue it was a terrible call given the flappiness of the end plate, it was more of a borderline call. It is easy to forget it and move on since it was a Haas, but I would hate to see a race decided based on a call like that. It was a tough spot for the stewards and team alike.
These type of call are always borderline - RC have no way of checking what has resulted in the end-plate becoming more flappy other than bringing the car in for a check.
How would you feel if the right half of the wing and went under his wheel and he took out other cars?