I also think it would help refs to better understand the positions if they themselves had been in them recently. If its been 20 years since another man held you down against your will, or blocked you off on your feet, or laid on the bottom and studded-up against your turns you've forgotten what it feels and looks like. Fans and refs who haven't wrestled in 20 + years have lost some of their ability to accurately understand what's happening on the mat.
I do think that it would be funny to see the refs warm up like the athletes. Run in circles around all of the mats, start taking shots on one another, handfighting for positions, and cranking on wing on top. A little pre-match entertainment.