Nothing in that (at least the part you quote - I didn't read/hear the entire comment) says you can't have dealers.

John Deere (the company I work for) works this way: everything is just in time, if you want a new tractor you order it and get it 3-12 months later. You still have to order from a dealer. Dealers do not keep new tractors on the lot, except for demo units and service loaners.

I'm not sure how this will work for Ford though. Deere is selling to businesses, a new tractor is a financial decision talked over with the accountant, and are bought/traded in based on tax deductions (the date you place the order counts for ta purposes not the day you take delivery). Cars seem like more of an impulse purchase and so people want to go to the dealer and drive a new car off the lot. Dealers (and Ford) doesn't want to risk someone buying a car and then changing their mind, which is a lot more likely to happen if you don't have the car yet. Even for Deere, dealers normally keep new small tractors on the lot.