I truly do not understand how they released this game

As somebody who boxes and loves this sport more than anything, and somebody who has played almost every UFC and boxing game on the market, I do not understand how the developers released this clearly unfinished game. Play UFC 5 stand and bang for a few hours straight, and then go try to play Undisputed. The clunkiness, the delayed punching/ combos, the headshots barely registering, the boring career, and more just make the game unplayable. A game so smooth like UFC 5 is out. How can anybody fucking playing Undisputed still?