You can see systemd and it's history about how it hold power.
With the advent of SEV, you won't even be able to look at the stuff your hypervisor is running.
Linux has been making giant strides towards increasing accessibility and lowering the friction of adopting it as a daily driver, while preserving the freedom to choose any distro you want.
Forcing new users to babysit a second installation in a special VM would be wiping out decades of progress.