Less client trust means some game designs are impossible. The latency caused by the speed of light leads to unacceptably bad player experiences if you don't trust the client, at least for shots from their p.o.v.
Personally I don't mind if fast-paced adversarial multiplayer FPS games stop existing, but that's a minority opinion.
Personally I don't mind if fast-paced adversarial multiplayer FPS games stop existing, but that's a minority opinion.