The second pillar
".. include a "fuse" that breaks when the phone's bootloader is unlocked, signifying the phone has been tampered ..."
So no legitimate repurposing possible? Depends on what the effect is of the "fuse" breaking - bricking maybe?
It would be great to have such features as options, having them forced on us seems rather excessively paternalistic. Almost every vendor or provider of IT now seems to think they must "secure" us forcibly whether we want to be secure or not.