[fhood]

To be fair, it is pretty rare (impossible) to find "secure" software that has zero avoidable vulnerabilities.

[Karunamon]

That's more of an argument about inauditable, non-disableable, hostile (the CPU shuts itself off if you blank out the appropriate data structures) code running below ring 0

[throwaway2048]

Don't forget in the majority of cases unupdatable too! (No vendor is going to issue fixes for old boards)