I understand that motion is an extremely important part of a lot of offenses. And it should be represented in Madden. But rather than give the user the ability to call for motion at the LoS, I'd rather larger playbooks, and/or create-a-play to add more motioning. And getting a better look at pre-snap defense is a very important motive for motioning (along with moving players around and hoping to get mismatches or confuse the defense). Motion is very much a part of football, but motioning WR's on the fly is not. And if the developers are truly trying to capture the NFL in the game, it's something that needs to go. Plus, think of all the problems and glitches they've had over the years related to user controlled motioning. It causes problems because it isn't a part of football, so it doesn't fit in with a lot of the other programming (I'm talking about fatigue glitch, snapping with the WR still motioning behind the line).
Formation shifts were a very popular thing a few years ago, but have fallen out of favor a bit in the NFL. The way it was put in in last gen was not how it actually works irl. That'd be a cool thing to add in, but only if done right.
Audibling your receivers to run new routes is called hot routing. It happens in the NFL all the time. Madden doesn't quite have it right (you should only be able to HR one receiver, and the routes should be more limited - slant, stop, fade, go, and quick pass (just turn and catch)). But it is a part of the game.
That is absolutely true. I do believe I did say something about this previously. HB's get moved in shotgun for pass protection all the time, and TE's and FB's get moved for pass and run blocking as well.