This is exactly my take on the issues. I will admit that I do use the field lines to select plays when I am looking for first downs. I am a football fan and want to play a realistic version of Madden, but I need those lines to help me out on third downs and such (espcially when there are a number of routes you cannot smart route).
If people don't use the field lines and they are fine with it being left out so be it, but please don't say it's not needed or wanted. I'm sure there are millions of casual fans (the majority of the Madden fan base) who will be frustrated by this omission and will consider it to be an unnecessary hurdle for them in learning and playing the game.
Was it really hurting anyone when it was in there? I could be wrong, but I really don't think anyone was really upset about field lines being on the play call screen. Alternatively, by not having the field lines in there are plenty of people that are upset about it. Why create an issue when there was none to begin with. This is just giving people something else to be upset about that wasn't an issue in the past.