For example, if the mob tomorrow decides that it's OK to give up privacy for "security", mozilla will happily have to oblige to become a state security tool. That's why strong leadership with values is needed.
Apparently "tolerant to opposing political opinions" is not such a value either.
I presume most Mozilla users, myself included, are in favor of gay marriage, yet there is no clause that you "have to support gay marriage" to use Mozilla software. It's also obvious that if Eich ever let his political beliefs affect his decisions on software he would be fired immediately.