

The problem I would guess is moving everything to new hardware. I know that many people that are working with VMs tries to ignore this, but software behaves different on different hardware. And this can cause some really hard to catch bugs and performance issues.
Also my guess is that these machine have some custom built hardware that would be hard to emulate

Yes, but ai gives a lot of false positives. And when you see articles like this its hard to know if its a verified vurnebility or a potential vurnebility.
It was kind of the same with the old vurnebility test tools