"My computer was compromised with an early boot stage hypervisor backdoor" happens basically never. It's an attack vector that exists almost entirely in the minds of infosec fucktards.
"My brand new device ships with vendor-selected boot certificates that can't be changed, can't be overridden, and control what software I can install onto my own device" happens with every other smartphone, gaming console, car, and even some PCs.
"Trusted Computing" is, and always was, about making sure that the user doesn't actually own his device. This is the real, tangible attack vector - and the target of this attack is user freedom and choice.