1) FIFA makes EA more money than any other product they have, by a very large margin.
2) NCAA is a really good game, there's always going to be bugs and glitches in a videogame, that because it is just that, a videogame. This version of NCAA has had me glued to my console the past few days, I don't even want to think about how much more I'll play when college football starts up.
3) Russ has been very supportive and active on trying to address every legitimate issue that has been brought up. I play both NCAA and FIFA, and participate on both of these games forums. I can guarantee you that FIFA has more gamebreakers, more glitches, less developer support, and millions of more people infesting their forums.
Point being, NCAA is a great game, its loads better than some of EAs other games, and you have take these things one year at a time. There is just some bugs that aren't found out until millions of people are playing and then report it, and unfortunately you have to wait until a new version comes out to address some issues.