I can't speak for all the kennels on property, but I do know about the FW kennels since we have boarded our beagle there for the last 8 years as a day guest. Some of the information given previously doesn't seem to be correct.
Most of the kennel accommodations are indoors, which isn't a bad idea considering the temperatures that can be reached during the day in Florida. There are some outdoor kennel areas available which are also under cover, but of course not air conditioned.
The staff is most excellent. Two of the staff members have been there for the last 8 years at least. There is between one and two on duty at any time during the business hours. They do require you walk your pet at least twice daily and they will keep track. They will not reach into the cage to remove your pet regardless of what you have presented as evidence of vaccination or the apparent disposition of the pet, and I really don't blame them. My dog is pretty mellow, but may feel threatened if a stranger reaches into his cage for him. The cages are cleaned everytime you walk your pet while he is out, with the cage being wiped down, a new towel placed on the floor, and fresh water placed in the water bowl.
You must present proof of vaccination at check in to the kennels. The FW kennels close at, I believe, 7:30 at night. If you are out past that time and are a day guest, you can go to the Outpost and someone will walk you to the kennel, let you in and allow you to pick up your pet. You will need proof of ownership, which will be the pink form they give you at check in.
Despite the OP's feelings about the kennels, they are clean, well staffed and have rules which basically are not out of line for responsible pet owners. If the rules are unacceptable, then you have the option to keep your pet in your RV or make other arrangements at home. If you leave them in the RV, however, won't they need to be walked during the day? Will anyone be there to let them out so they don't have to sit in their mess all day while you are at the park? What will happen to your pet if the electric goes out and your RV air conditioner goes out in the middle of summer? What if your pet dumps their water bowl? Who will be there to refill it? I realize that the kennels are not for everyone, and that's ok by me. But I think the staff at the FW kennel is great, and that Disney provides me with a service that allows my dog to go on vacation with my family, allows me to be free to go to the parks during the day, and gives me the peace of mind that someone is there with him if he needs help.