Replying to Tricks that pros can't do?

So after watching some Vars skate comps it got me thinking if there are some tricks that pros are just stuck on for example B dog wasnt able to get misty 450's and it looked like gus couldnt do a non corked spin past 10 off a cannon box which to me seems like a pretty staple trick on the professional level. Anyways just wondering if any of you guys know of some tricks that are relatively easy for pros that some of em cant do