you have hardware on the cpu no longer accessible by software. you have a mellanox network card the me can't talk to. it's there, in the kitchen drawer. it's no longer in the door -so not a security problem.
the 'issue' requires physical access to the machine, and for you to be logged in with an admin account. if someone is physically sitting next to your server and logged in as root, you have no security anymore. they don't need to break into anything, the can just run what they want already.
someone is in your car with keys in the ignition. you're saying they can steal your car by hacking the entertainment system because it's insecure.