If the two dojo(s) become one, some people will leave due to the different views/opinions about aikido.
If they split and go back to the way they were before, everyone will be happy (even if some people "switch sides").
So, why bother with the merger? To have a bigger dojo? To prove that one won over the other?
I say let the sensei fight it out to determine a winner (another attempt at ... never mind).