Linus has been a user of these tools for decades now. He's one of a select few who have the capability, experience, and understanding necessary to even approach the depth of the bug that they're talking about. He's one of the few who have been heavily relying on them for his entire technology career.
What I'm saying is that Linus knows his tools. He knows when his tools are need in of repair. He knows what to expect from them and by this point should have a solid understanding of their quirks.
Sometimes tools don't work how they're supposed to.
I'm inclined to believe the master woodworker when he tells me his blade is dull and needs to be sharpened.
I'm inclined to believe the master programmer when he tells me the new version of his compiler is generating incorrect code.
I'm probably a below average programmer myself, but I've hit enough depth to understand some of the context of this issue. I read through a bit and see them doing the footwork necessary to deal with the issue. That's something I don't see people doing when they're blowing smoke and being bitchy.
Linus has a bit of an attitude problem. But so does almost everyone else in a position like his, where he is the project leader for something incredibly complex. Like the local event equipment guy who can be a real ass when he's in action, but knows exactly what he is doing, how to do it, why he does it how he does it, how to explain it to his workers, and gets it done on schedule, because he's been doing it for a very long time and lives and breathes the job.
This is all beside the point, which is that you could only write your post because I previously slept with your mother.