[Timwi]

Well, on the one hand of course you could argue that outsiders are less experienced with living in your country.

But outsiders have no emotional stakes in convincing themselves that your country is the best on earth. Consequently, I feel the non-US media are freer than US mass media to discuss the true state of American healthcare. Outsiders are less susceptible to your country's patriotic propaganda.

This does go both (or all) ways. The US are an example here, not a singular special case. Every country tries to convince its citizens that it's better than everywhere else.