Not surprisingly, given that the status quo is very good for them, they are quite happy with it:
“The U.S. withdrawal of its WTO commitments in gambling services was the only approach that could meet U.S. treaty obligations, remove the gambling issue from the WTO agenda and restore stability to the domestic regulatory environment,” said Alex Waldrop, President and CEO of the National Thoroughbred Racing Association. “The NTRA has long advocated the withdrawal of U.S. gaming commitments. This agreement is a major step toward the conclusion of the WTO dispute involving the U.S. regulation of remote gambling services.”
I suppose it is a major step, but there are some big hurdles left.