I honestly thought he was taking about the TNT/TBS apps. I wanted to know what was worthless about them.
As for the button remap. That was NOT a surprise as they mentioned it during the last event. It has been reported on numerous times during the beta period. And for someone who is an active member on an Apple site. I find it hard to believe this was a surprise.
Apple even conveniently added a pop up to highlight the new feature AND how to change it.
TV app is just for content discovery and a watch list. It works with more than just pay tv authenticated apps. HBO Now, STARZ, Showtime, Hulu just to name a few, support the app.
You have none of those services.... remap the tv button and move on.
But Please recognize that the majority of the market subscribes to at least one streaming site that supports tvOS TV app.
Oh I never said it was a surprise. I knew it was coming and honestly I was expecting/hoping to get utility out of the corresponding TV app. However, I'm sure it did come as a surprise to many an Apple TV user, but as you mention they do explain the change.
Granted there is some percentage of Apple TV users that get utility from it, however it may not be as large a number as you might think. For 3 primary reasons...
1) With the cord cutting trend, I would hypothesize that a large percentage of Apple TV users don't subscribe to a cable/satellite service, so that would take away a large portion of functionality (because unless I'm completely missing something I don't see any way of having apps like ABC/NBC to show up without a subscription. The only thing that I've found that can even populate in there at all is the CW)
2) Netflix and Amazon Video are 2 of the largest services (I have both) and they aren't in the app
3) The services you mention like HBO, STARZ, Showtime, and Hulu perhaps are available, but I doubt a significant percentage of people subscribe to MULTIPLE of those services. And if you're only going to use one of them then you'd be better off in the individual app made for it.
Sure the obvious solution for me would be to remap the button, as you suggest, but I just had a lot of hope for the app.