Tangentially, it would be cool to just have sanctioned ebike races. We have motorcycles and cars, why not ebikes? I'd love to watch a high speed, no holds barred e-cyclocross/gravel/MTB race.
Mountain bike (MTB) enduro is stage racing. Specifically, timed downhill-only sections separated by untimed transfers between stages. The name comes from motorcycle enduro racing. Riders do not go head-to-head like in road cycling, cyclocross or motocross. eMTB enduro is exactly the same format but using electric-motor assisted bikes and, IIRC, one timed uphill stage thrown in.
MTB/eMTB enduro is great fun as a participant sport but either not-there-yet or not-suitable as a spectator sport.