Further proof of how difficult it would be to film this show. They kept cutting away from signing actors to wide shots where you couldn't really make out their signs anymore. If it was filmed that way deaf viewers would have to have the captions on for the whole show just like any other movie.
I agree with the original poster. These people are amazing. (I've said it before and I'll say it again, Alex Wyse is amazing.) And I agree that it loses something in such a tight space and with camera choices.