That has more to do with a moderation team behind the game that actually gives a shit than it does with having a kernel anticheat. Kernel anticheat keeps out the skids on MPGH, but a dedicated developer that actually gets paid for their efforts can bypass kernel anticheat with relative ease. This is why paid cheats for games with kernel anticheat (but also actually decent moderation) highly encourage you to be very subtle (using triggerbot instead of aimbot, for instance, or limiting your aim FOV/aim speed). The cheat in question may well be undetected by the kernel anticheat, but that doesn't stop you from being banned by game admins that pay attention when you're getting instant headshots and mass reported as a brand new account.

Again. Kernel anticheat is a half-assed software solution.

To give context to the other comment, this video shows in detail many bypass for cheating in Valorant. Hacking into Kernel Anti-Cheats: How cheaters bypass Faceit, ESEA and Vanguard anti-cheats.

One particular point that's stand out to me is Riot propaganda on how effective is the kernel anti cheat, that's change the players perception on cheaters and even when they face a cheater they don't believe is actually a cheater, something like: "Nah can't be a cheater, is impossible to cheat in Valorant"