I love the Tekken team, they made console TTT2... which is the greatest thing I've ever played.
BUT, their track record is only good because of the arcade culture behind it. Except T3, every Tekken game originally had glaring with issues.
TTT1: 1/5 cast were viable, never changed
T4: nothing needs to be said, never fixed
T5: Steve,Nina,Bryan,(Feng) --> Fixed in T5DR
T6.0: Bob/Kazuya --> Fixed in T6BR (T6.0 Pre-patch was madness: (Get 2 bounds in a combo with wall, King BT grab glitch at the wall, among others)
TTT2: Hwoarang + Overall Damage --> Fixed in TTT2U
It took them at least a year from the original release to get to the quality we have in the console version. Unfortunately for TxSF, they don't have a year. They have to get it right when it ships on the console disk since there won't be any arcade release for them to flesh the game out like they did in the past 3 titles. And getting it right the first time... is pretty rare.
But that's not unique to Namco. Capcom themselves also got CvS and SFxT wrong the first time. We had to wait wait for CvS2 and SFxT2013 to get things right. I personally feel that Namco won't get TxSF right the first time either... and the way things are going for this crossover series, I'm afraid there won't be a demand for a 2nd one.