

Naturally. Advantage, privilege and money should only be in the hands of those who run large companies or better.
If that made you angry, bear in mind that’s what most top level company executives think. Well, actually they don’t think it, they know it unconsciously as the true order of the universe they inhabit and they get really uncomfortable should it even look vaguely like someone might be trying a competing philosophy to their own.
To be fair though, most people get really uncomfortable when something might undermine even part of the philosophy they live by.
… are used by distro update mechanisms and very few people turn those off, even if they don’t use elevated privileges for anything else.
Admittedly, it’s unlikely that a distro’s repository will end up with a compromised microcode package, but it’s not impossible (Remember the 7zip debacle?). And if it happens, you can be sure that whoever designs the payload will use the temporary access to install something ugly that has more permanent access.
But as you say, AMD have issued a fix. And that’d be why.