Yeah well after expecting KH 3 for so long I've gotten used to the dissapointment. Getting riled up won't do anything. Plus as we get closer to the release of KH 3 probably in 2017 they will release more. We will probably get a ton of stuff next year too.
This is true, people have been freaking out for years saying "give us KH 3!" and yet they keep saying please be patient, I don't think they'll change that now. I'm not mad at SE/Disney but more disappointed.
At this point I'd rather have the game itself than a trailer. But they did not handle this situation well. They should have said it was exclusive from the get go. But who knows? We may be surprised.