Tiburon doesn't like modders. It's taken modders forever to crack their programming for madden and even then it's not on par to what you could do with nhl/nba/mvp/fifa.
But i do agree with you that they could try releasing the PC ver once every 2-3 years. Honestly, I have no clue what they were thinking with the PC ver. Essentially releasing the same game year after year and then giving up when sales bottomed out and blame pirating but not citing any evidence of lost revenue due to pirating.