A decision to rescue and free Alissa was made…
Since the target is Mark and because Mark was persistent in his wish to save Alissa, no one disagreed to such a decision. They did have a few uncertainties and worries at the beginning, that's certain, however, it was not to the point where they would completely deny Mark's wish.
Everyone was considerate, and everyone raised their hands every now and then to propose questions about the pros and cons of falling for the words of Queen Dracula. Not one of them dared to think irrationally when having to make a difficult decision. After all, they've already lost a good friend of theirs if not considered the fact that he's still alive through the ghostly methods of Z0a.