Baseball and fast-pitch have more registrations than slow pitch and generates a lot more in fees that slow-pitch ever does.
Look at some of the numbers in Indiana, Kansas City, and Texas for fastpitch and Georgia, North Carolina, Kansas City, Louisiana, and Florida for baseball. Some of those Kansas City baseball tournaments have 300-400 teams multiple times a year. Georgia runs a spring NIT in Atlanta in April that has over 400 teams.
USSSA is not going anywhere people. They just have people who understand what is really generating their income and starting to realize that slow-pitch is a zero gain proposition.