That video was good, and it's been a few months since I've seen it, but I remember being a bit unsatisfied about the point you mentioned. It seemed implied to me that Wendy's and other places use the same kind of Taylor machines and it was never really explained why they don't break. I understand the idea that McDonalds requires using the Taylor machine which creates some of an incentive against fixing it, but it wasn't clear to me if the other companies don't require their use as well (which would create the same incentive), and even if they don't it doesn't really explain what's different about those machines since clearly they are functioning a lot better.