This isn't true. There is a video interview, on OS, with Ian talking about Gameflow and Gameplan. He talks about how you could set it up so your coordinator picks from 15 plays per situation, 1st Down, 2nd and Short, etc. You then rank the plays with a 1-5 star system to determine preference.
My understanding is that they did a lot of research into what makes each team that team. Coaching tendencies were looked at quite closely. Now if this research translates into teams and coaches and players acting as they do IRL in Madden, who knows.
But as someone else said, this question is way too early. I haven't ran out the door to buy Madden in years, ever since '99 or 2000 it has been rent first.