Absolutely it was. I chose to use the prescription drug example because it is the opposite of what happens, and has been discussed in these forums.
Edited to add: That video and article go a long way to illustrate how a single payer system works, and how much of the US establishment works to reject it. It's a fact that the US system provides excellent care to those who can afford it, and that in a single payer system some may miss out. Or more often have to wait. People going to the US for an MRI doesn't validate or invalidate either system. I went to the doctor and had to pay $125 for the consultation (different system to Canada where everything is free at the point of delivery), but got half of it back from Medicare. A follow-up consultation was 'free', billed directly to Medicare. I have insurance, but if I had a heart attack I would be treated but wouldn't have to pay or use my insurance, the public system would cover it.