People are making threats against him?
That's wildly inappropriate.
But to criticize his performance, call him a bad player, even "trash" or something similar is fine. He's an pro athlete in the public circle. He would get all the praise and hero treatment if he was amazing, so the opposite has to be true if he sucks.
It was a terrible year for him and he looked more than shaky, but he was great before that.
Kickers are a weird breed and theres a chance he bounces back if we give him an opportunity to.