If it happens again next year, the amount of riders will surely be larger...
The jumps are massive, they're kind of spread too far apart, and there's still some headwind causing problems, but 15 riders definitely went in to make it into the finals. For those about to go buck in the comments, this was a bit of a last minute event thrown alongside the Moto GP in the UK, so just appreciate the fact that there's something in the works.
If it happens again next year, the amount of riders will surely be larger...