Nerfing Trinity will just push Corki out of viability again, not to mention the other champions that just got back into viability because of its buffs.
Corki is the biggest problem here and nerfing him directly is better for the game.
I completely disagree. I think nerfing Trinity is a much better solution than nerfing Corki. The problem lies in that, currently, Trinity is just way too good on people. If it was just strong on Corki then I would understand the nerf to the champion but that's not the case here.