Don’t be ignorant. That isnt what this is at all. It’s not like the game has more access, it’s actually less. They’re just enforcing hardware attestation.

Basically just the motherboard saying, (cryptographically) yes as far as I know, the kernel and system running are secure and weren’t modified. And in this case they found a bad bug in that system, and next year they may start requiring people parch update their motherboard firmware to a version that doesn’t have the bug.

So this, is not a root kit, and does not grant them “bios access” they want to be unable to modify the BIOS / OS at boot just as much as they want cheaters to be unable to do that. It’s the same as the general cryptography paradigm, there is no secure backdoor to cryptography, and it’s the same here. If RIOT had access to the UEFI (BIOS), cheaters have access to if. They’re just leveraging an entirely safe attestation from the UEFI to say it is secure.