All most all have tubs. We were there 2 years ago and had 3 cabins that had all been refurbished and I have not heard of any changes to the Cabins since then. There are some accessible Cabins that have roll in showers though. I believe all the accessible Cabins are located in the 2800 Loop.
I don't see how it's a safety issue as they have tubs at the other resorts