If you have a lot of moves disabled, you will get back the FEs you spent on those... or get credit for the times it leveled up by execution in the form of FEs too.
In addition, if you spent ability points on wrong things early in your build as you learned (like the points I spent on submission stuff when I'm a strength wrestler), you'll get to re-invest those points on things necessary for your build.
A stat reset was the best thing I ever did for my wrestler. The extra FEs you get you can either use to build up the moves you buy back to a higher level, or in ATs. SAs, in my opinion anyway, are still a waste.