I'd be disappointed if mine came back with that much hair on. You might be able to tolerate it, if you were just rearing pigs for yourself, but if selling to others, you have to think about presentation.
I was given a Berkshire joint by a friend and it was so hairy I couldn't bear to cook it with the skin on! Hope you can find a better abattoir. Pretty hard to find in this area, so I'm lucky there's a really good one just 10 minutes away.