It's his history and actions that made him unsuitable for the position. Despite that, they still decided allow him to return to the board. While RMS and FSF have done great things in the past, actions should have consequences and movement shouldn't be tied to one person.
The previous attempt of removing him was executed as an appalling witch-hunt. Yes, Stallman is insensitive, but when people saw something more insensitive being done to him, they sided with him.
I'm all in for finding a replacement for Stallman, but that must be done in a more careful manner.
