As the primary kernel developer, the amount of crap he has to deal with gives him broad levity IMO.
I've worked with engineers across many fields over my ~35 years of working. When they're ripping you a new one, you pretty much always deserve it.
Putting shit on a plate is being a jerk, because you're not only wasting your time, you're wasting his time as well.
A thoughtful comment would have illuminated the issue, explained why the fixes were too broad or not specific enough, and how they could be improved.
Linus is the defacto expert on the Linux kernel. His familiarity with the kernel and long history on these issues gives him the credibility to say a patch or code is completely nonsensical.
This isn't Intel's first rodeo. They know what is expected and they continue to play games with their code. If they are pushing garbage then there's a very good chance they know it's garbage.
And he'd have to be an expert on Intel processor internals, which he really can't be. Not in a position to know the details.