I think what he was getting at was that, if the roleclaim is true, then there may be a Cult included. The day ends soon, so it's possible that he thought that he wouldn't make it back online before the end of the day.

But it's also possible that he's just guarding himself and giving a reason as to why he would flip scum if lynched, since, like noted, he might believe that he won't be back before the end of the day.