ImPorts are a small community in this world. [ they are bond to all know each other. ]

Shigaraki-san, Toga Himiko tried to stab me. [ if you didn't know about that, now you do! ] She didn't know who I was when she did that. It may be presumptuous of me, but I doubt the League of Villains told her to go stab a random imPort none of you knew, in the corn maze during the Fanport.

Plus, you and I met there as well. You could have easily done it yourself if that was truly something the League wanted to do. [ AND Shigaraki wouldn't even leave proof behind since he can turn things into dust. ]