Officiant's hotel room

What does your contract with the officiant state? Is their attendance at the rehearsal in your contract? Or anything about a travel policy? If your contract only covers services for the wedding day and there's nothing stated about a hotel or travel fees, then I don't think you're obligated to cover the hotel cost. But if you want them to be at both the rehearsal and wedding (instead of just the wedding), and it's within your budget, then it would be a kind gesture to offer to cover the hotel cost too.

An hour away is the long side of a daily commute. A hotel room is completely unnecessary. Don’t spend your money on this.

There is a certain sense of security knowing that your officiant is present and things will start on time. No worries about traffic, weather issues, etc.

We covered the hotel cost for our daughter's officiant and it was worth the peace of mind. The officiant, being there at the start of the day, also touched base with each of them to calm any nerves.