It isn't a cop out because:
This, I think, is the principle problem with such documentaries that makes people think they are more important than they really are. Documentaries are *NOT* journalism, they are movies. And independent ones at that. 60 Minutes is a news magazine, associated with a real news organization. It has fact checkers to make sure the stories they run are truthful, editors to look out for the reputation of the organization by not reporting garbage, and most importantly, a journalistic code of ethics that they typically make an effort to follow.
An independent documentary, on the other hand, is entirely the brain child of one person (actually, in this case, two), who may or may not care at all about such things as journalistic ethics, fairness, and accuracy. And unlike a 60 minutes reporter who does a different story every week, that s/he probably didn't even pick himself (and so has no personal interest in the story), a documentary filmmaker often spends years on a topic they are passionate about, a sure-fire recipie for bias, even if he intends to be fair.
It is a huge mistake to approach a documentary like this believing you are just watching an extended episode of 60 Minutes.
I watched a clip from it (perhaps a trailer, perhaps the intro) on Youtube and was quite undewhealmed by the mixture of shock tactics (wait, the Perdue company really kills chickens??) and anti-corporate propaganda. It has the feel of a generic hippie rant*, not a 60 Minutes piece. The commenters on YouTube knew the score, though: every one on the first two pages had a favorable opinion of it, but even they understood that the only people who bother with such things are those who are already passionate advocates of the cause(s) the filmmaker is promoting.
*And your mega paragraph follows the mold, mixing large helpings of anti-corporatism, animal rights activism, anti-governmentism, extremist environmentalism, and Americans-are-fat -ism with its points about food quality. But even if those food quality points are legitimate (and maybe only 20% of the points in that paragraph were on that point - all the rest were unrelated rants), all of the other ranting just turns people who aren't already advocates off to the topic.