If you accept that Linux would continue to be successful if Linus were to be hit by a bus, then you must also accept that his way of doing things is not the only way. Which means that being rude to people and hiding behind technical brilliance is not, in fact, required for Linux to be good.
Linux is not a particularly elegant set of code. History, success and market pressures see to that. It's no longer the hot underdog whose adherents can fight the good fight with a purist passion. It's a fat, middle-aged lump of code alternately lovable and loathe-able. It's time for Linus to drop the Holy Keeper Of The Flame act, take a long, long sabbatical, and do something else for a few years.