Thanks for the link. I think this underscores the problems with doing it piecemeal.
1. We have a sample of one. There are many reasons why, as the owner put it, "The restaurant industry is incredibly difficult as it is." Perhaps the cause of his struggle isn't related to lack of tipping and his restaurant will continue to struggle even after they go to conventional pricing and tipping.
2. People are innumerate. They look at menu prices, see that they're higher and go elsewhere, even though by not having to leave a tip their total out-of-pocket cost is the same.
3. People are also slaves to habit and culture. I suspect that more than a few felt compelled (shamed?) to leave a tip even if they didn't have to. This again would defeat the point of a no-tipping policy.