Edited Date/Time:
When I first heard how they'd score the "Triple Crown" events I thought it was OK. Turns out there's a simple issue, but I didn't even think of it until I watched. This isn't a big thing, but it is a thing.
When the third race settles in, there's not necessarily any reason for a rider to attempt to move up, because it might not affect the overall. In this case, Tomac lost the lead to Anderson in Race 3, but he had zero incentive to try to retake the spot (or even defend the spot for that matter), because he had 26 points either way.
There's a reason that real motocross awards points for each moto individually, and that's it.
F1. MotoGP. MXGP. Screw the rest.