To be fair, I think this may be the longest Tekken arcade -> console release gap, and it has the least amount of home additions since maybe T2. Missing big classic characters like Lei and the Wangs, no Team Battle mode, no Survival mode, no Ball/Bowl, no Tekken Force. And with a mediocre wubby soundtrack and underwhelming stages.
So I think it's totally fair to be disappointed by the console release. I certainly am.
I think there's a difference between being disappointed and upset by it. I can understand how some can be disappointed, definitely. With that said there's some great enhancements that don't get enough attention. It's like I see more people upset than highlight the good things they've seen and also at the same time it depends how you look at it. Gameplay-wise, with the new Rage Arts, Drives and Power Crushes, slow-mo and tailspin instead of Bound, that's an evolution that makes sense to me. If people don't like it that's ok, it's just not the same ol gameplay as we saw last gen which was needed. You also have an improved Story Mode over Scenario, you've also got Akuma which is pretty interesting. Characters finally have new costumes and we're finally getting down to the nitty gritty storyline-wise. We see Nina and Steve finally having character development, Law/Feng and the whole Mishima Saga. With the gameplay and storylines, individual characters that do appear I see a noticeable improvement which is something that's been lacking.
But there are negatives such as certain classics missing, the lack of some modes and then the music and stages. With Jukebox I can make due with the music, stages? It depends. Either way what I'm saying is with the amount of time they've had, what they've put time into and all the comments towards development, one thing that sticks out to me is something would have to be hit in order to include everything people want. If you want more modes, something has to be taken out. Better stages and music? That's more understandable but the extra modes, characters, nah we're going to have Story Mode take a hit or the graphics or just something in general.
Overall, there's no possible way to include all of that plus the classic characters, extra modes and everything else people want. Something has to be a trade off. I'm not sure what that trade off would be but either way it would disappoint a good amount of people either way you cut it.