It hasn't, because I haven't yet needed to buy a new computer. But if we can only call out moral wrongs when they personally affect us, we may as well stop calling it morality at all. If you're saying it is, in fact, not prohibitively difficult to securely install an arbitrary operating system, then I would honestly be delighted to see some proof. But all I heard was that the signing keys couldn't be changed, and it was difficult to get things signed so they could be booted, and that's enough to make me angry.