No you're not getting it. Linus is not like this often. And he's not like this to people who are innocent bystanders. Linus will only chew you up if you're an engineer he knows personally that should know better.
What you have to understand is that these people are not on Linus' payroll, so he has little direct power over them. Screaming at people is one of only two forms of power that Linux can exert, the other being withholding merging of code, which is even more extreme. And these incidents actually come up rather seldom when you think about how much code is submitted to the Linux kernel, which I think is a testament to how well Linus' management is working.
What you have to understand is that these people are not on Linus' payroll, so he has little direct power over them. Screaming at people is one of only two forms of power that Linux can exert, the other being withholding merging of code, which is even more extreme. And these incidents actually come up rather seldom when you think about how much code is submitted to the Linux kernel, which I think is a testament to how well Linus' management is working.