Don't really know what the issue is. Gamestop trying to sell stuff, news at 10. They aren't overcharging you. Are we complaining because it's not cheaper?
I mean, I get that it sucks that their adapter on it's own is old out and you can only get one if you buy 4 contollers - but they aren't the only retailer out there that sells them - they are just trying to make a bit more money per sale on an item that is hard to find. They aren't ripping you off, if you don't like the deal, don't buy it. Just go on backorder at the store itself or at another retailer.
Bundles that don't save you a dime happen all the time. I don't see how this is any worse than those times. You can hate it, but it's not retailer exclusive.