Dirtvision vs FLO is probably part of the equation as well as USAC's history of weak payouts and point funds compared to wing racing (2022 a step in the right direction). Not too many make a living driving in USAC vs the WoO. Also, factor in the recent departure of Levi Jones's leadership. 1978 USAC leadership loss in the plane crash created a void that contributed to the growth of NASCAR, WoO; and the USAC decline from the top. This is a business, so do not expect either side to cooperate and play nice. The fight for tracks, exclusivity, and teams will be intense very soon. Survival of the fittest. Watering down USAC's fields, just when growth is on the upswing, over time will further diminish the USAC's footprint in dirt track, open wheel racing.
Success for World Racing Group also depends upon available non wing and midget cars locally available to run the 10-15 shows AND a purse structure that rewards those local teams to bother to compete as field fillers. A word of caution; I am very concerned about speeds and safety at a place like Volusia once a nw sprinter goes tumbling.