Haven't been following those bills since those don't matter here in Europe. But I think I saw one comment somewhere (can't remember where) that the bill would've only allowed Tesla to sell directly while other OEMs would've still been locked in the dealership model? If that's true wouldn't it be better to have a bill where all OEMs can sell directly?
You're too logical bills are crafted in such way to get enough votes to pass -not to make most sense. Allowing all car manufacturers to sell direct would definitively meet strong resistance from dealerships.