I feel as if cricket is the #2 most popular sport on earth or thereabouts.
Lax has had a world championship for a long time, generally held every four years. It is a super popular sport in Canada, which has birthed some of the sport's greatest stars. Dozens of nations have participated in worlds, but USA wins almost every year and only five nations have ever medaled (USA, Canada, Australia, England, and the Haudenosaunee Nationals).
I agree with your argument about "ultimate achievements" but that cuts out basketball, soccer, and probably a bunch more. The IOC doesn't want to do that.