I was just about to post a question about this. I saw bits of it. I hated seeing the cow being led in to slaughter. I'm a meat eater, and admit to trying not to think about the whole process, and in a way prefer the way I can just pick up a packaged joint of meat in a shop and not have to give much thought to where it's come from.
However I know that's what they're trying to get at - they want us to understand where the meat we eat has come from. I do think it's important, and hope it gets people to respect what we're eating.