This behaviour is common to all organizations, and commonly results in pathology within the team.
What is uncommon is the open nature of Linux kernel development results in the internal dialogue being public & recorded.
This level of transparency and raw material is interesting and potentially powerful. What seems to be missing is some mechanism to harness it through a reflective feedback process. Has it been considered? The self organizing nature of open source developement is powerful but not immune.
I also note that given '80% of the kernel development' goes through Linus, despite his 2% actual contribution, the kernel development is, therefore, very brittle. Being vulnerable not only to the 'hit-by-bus' effect but simply to the emotional whims of the conduit of that 80% - as exampled by Conus & Cox.