Earlier quoted context omitted.
That's an interesting perspective, but it kind of looks like a lot of graphs saying "You should pay for stuff you don't want because otherwise it would incentivize the sellers to price gouge you for the stuff you do want" I'm kind of confused, if it's an adversarial relationship where the seller is going to extract as much money from you as possible in either scenario, wouldn't some consumers prefer to pay specifical…
You aren't going to be able to spend less money though. Since there's zero marginal cost to adding extra channels, you should assume that the price you're getting charged isn't actually based on the number of channels you subscribe to. A better way to think about bundle pricing is that the channels you really want cost $50, and they throw in a whole bunch of other crap for free. Why turn down free stuff?
Whether that factors much into your personal value assessment or not, that is a valid downside to having a bunch of extra channels you don't intend to watch.