Yeah there's definitely a breaking-the-bubble issue which is why I didn't include MK or AK. I think Epcot is "real world" enough that that's not breaking a bubble (I think the Rose n' Crown would be a perfect fit in with the reality... what English pub DOESN'T have a TV showing games these days?!

). DHS had American Idol and I think an ESPN building at one point so, again, I don't think that's really breaking the 4th wall of the parks.
Although I agree it will shift the nature of park going with some of the crowd (You and mommy go to ahead to the land pavilion and daddy will explore english culture at the Rose n' Crown... all day) but if a customer wants to spend $100 to go into the park to watch football and drink beer... How can Disney lose?!
I think there's a need for a decent sports bar at least on Disney property (resorts aside) Placing it at Disney Springs or on the Boardwalk is a good idea (the trick is keeping it profitable during the down times)