I strongly disagree. There have only ever been a handful of data exploits attributable to kernel-level anti-cheats. On the other hand, developers report that they significantly reduce cheating. As someone who plays online games, this is a tradeoff I gladly make.
I often feel these comments are made by people whose preferred games are not ruined by cheaters. This is happening right now in Arc Raiders, and it's really sad to watch. The developer, Embark, is now investigating using KLAC to reduce the number of cheaters.