Not that I’m defending Vanguard, but Riot’s choosing to invest in developer resources for Vanguard (and in finding cheat developers) so they don’t have to invest in server capacity or developer resources to support cheater only lobbies.
As long as their anticheat is effective, every cheater they can repel is some amount of server capacity that legitimate players can use.
Also, cheaters in the types of games Riot makes will cause some amount of opponents to simply leave the game in frustration. So part of this is just trying to keep players who are willing to install the game happy.
They’ve chosen to make free to play games, so this tradeoff actually makes sense for Riot. But again, kernel level hacks aren’t something everyone will or even should install.
It’s all about tradeoffs.
Dev’s gonna have to pull a Flappy Bird 💰💰💰