Don’t confuse the real point with the caricature. There’s a very real risk of only giant corporations being able to control software, because the general public does not even draw a distinction between “having control over what software is running on your computer,” and “being able to run a curated collection of software blessed by the manufacturer and subject to their exclusive discretion.” The full acceptance of the Apple iOS platform proves this. Apple must bless all binaries, and except for cases that are getting less and less common where jailbreaks are possible, the user has no authority and you could argue they do not own the device.

Some combination of the advertising industry and those with a vested interest in anti-fraud such as banks will eventually try to sneak remote attestation in there, which has the potential to put a complete end to ownership of devices as we have always understood it.