Similarly in Germany, very few people use the Fastrack option if available (Heide, Lego with Qbot, Movie Park with unlimited for €25 and Phannylands strange 4 tickets for €15)...
Probably a culture thing more than anything, as well as the lack of one shots and other bits...
The other option is push throughputs to the highest standard of course, which would negate any queues... But even places like Europa can't remove queues completely, so why Thorpe thought they could in the first place was beyond me...