I read a review reply by Red Lion mgmt. the other day that said housekeeping can't enter the room with uncrated animals, which would imply that they're allowed to be uncrated while in the room alone. I don't know, though. The paragraph about pets on the web site doesn't mention crating.
Most require it, for the simple reason if staff needs to go in (emergencies happen) they don't want to be bitten, nor do they want the dog to escape the room. Imagine coming back to find your room flooded by the room above AND your dog gone. (It has happened.)
Most hotels (Sheraton, Hilton, Marriott, Westin) actually states animals may not be left in the room unattended. An example is Sheraton's "Pet Policy
Dogs less than 80 pounds are allowed. Dogs can not be left alone in the guest room. Cats are not allowed. Guest must sign a waiver at check-in before dog is allowed in any guest room or public area. Dogs are not allowed in any food and beverage or pool area. A pet cleaning fee of $40 per stay will be charged to your room." Red Lion doesn't specifically say crated or unattended. Neither does Plaza. Hilton, Sheraton, Westin, Marriott do.
We travel with dogs. For the last 8 years, we have traveled with 1-3 dogs on all trips. (Service dog/Service Dogs in training) I would never consider leaving one of them uncrated in a room. And our pups love their crates. It gives them security, and gives us security nothing is happening to them. Dogs are like toddlers. (We joke taking our pups to
Disneyland is like having a 3yo with us all the time.) They may be very well behaved, but all it takes is one blind eye to have problems. I am not talking just about causing some destruction, that is just going to cost you money. But talking about chewing something and choking, finding a plastic bag with remaining cookie crumbs and swallowing causing a blockage, doing something dumb like getting on a bed and jumping off and landing wrong tearing a knee, etc... Cash to pay for a torn up duvet is of little concern to me, but finding my pup injured or gone is too much risk.