I am going to say this and I'm not trying to offend you but I'm going to say it bluntly. This pro only mentality exists in every coating company and you will never be able to change it. I have heard many non pros wish they could get the pro only stuff. Just go after the consumer products and you will do just fine.
You cannot use what other business, like what body shops do to make an argument that a coating company should do the same. We are a unique business playing by our rules.
It seems a bit foolish to say that your opinion is unpopular in a setting like this. We are not defending a position we are establishing a standard. We don't need the average Joe buying pro grade coatings. Dr. G does not want that money. He made gloss coat for the consumer.