I will also never trust Purism after their dishonest claims of having an entirely open laptop and entirely ignoring Intel ME problems for the sake of better marketing.
https://puri.sm/posts/purism-librem-laptops-completely-disab...
They can turn on the HAP bit and run me_cleaner, this reduces the amount of code which runs on the ME. This is an attack surface reduction. It is wholly misleading to refer to it as outright disablement of the ME.
That's a big stretch. Purism does a lot of work, openly, to try to disable ME.