Yup, no one other than Arc's owner, the owner of the stable and another trainer are allowed to touch or handle him. I suppose it keeps down on the treats he'd get, as I've been there times and I've wanted to give him treats, and have wanted to dote and love up on him.
I think that if I had a show horse such as Arc boarded out somewhere, where there are a lot of people around, I don't think I'd want anyone to touch him either. Not because I'm selfish, I just wouldn't want anyone to hurt him, or for him to hurt anyone.
I've spent a lot of time on the grass next to his round pen, just watching him, he has this kind of energy about him that is magnetic. All of the other horses around him are laid back, they're grazing, or wanting someone to come and give them attention. Not Arc, he's always prancing around his pen, he's so restless it seems. He fits my definition of a stallion. I've only ever been around him (a stallion), but in my mind, he's what a stallion is if that makes any sense at all. To me, he's a wild restless spirit.
It's easy to see why he does so well in the show ring, when you see him, your eyes are locked on him, and you don't want to look away. His glow and personality are awe inspiring. I have yet to see anyone work with him, but I bet even just his training sessions are exhilarating.