Well, if we are all going, then Naillus will join. However, he will say, "But, are we splitting the party? It would be prudent for someone to pull you all up if it becomes necessary. Should we discuss this a bit more?"
Naillus is unconcerned in that he will go with the majority on this. Having allies is good, enemies bad. So, it would be wise, he thinks, to determine which they are and deal with it whichever way it turns out.