Do you also think all you can eat buffets should be illegal? What about early bird specials? Free soda with a large fry? Happy hour wings? Where does the “bundling” end?
2.) Early bird specials, again, aren't loss leaders. They're a way to get sales on the left side of the bell curve. The restaurant food is still the product, not a subsidy.
3.) Free soda with large fry doesn't actually exist (though it sounds like it should, right?)
4.) Happy hour wings (again, see #2)
None of these are bundling so I don't really get why you bothered to comment
I just searched and found free medium fries with a large soda at McD if you order through the app. Seems like bundling to me, and you have to use their particular app.
But it's just hard to care too much about a commoditized product and an app with tons of competition. And McDonald's is not keeping any competitors away by locking their fries offer behind their app.