The more I think about this, the more I don't like it ... for now.
I don't think penalties should be put in place for "over-using" a player until we actually have better control over this.
For example. I recently had a game where I got up big and then began running the ball. I ended up with 40 carries. 26 for my RB1 and 14 for RB2. If this were an average game, I would end up being penalized because RB1 went over 400 carries.
I've also seen games where I get down early and end up throwing it nearly every play, even though my gameplanning calls for a more balanced offense.
Until we are actually able to have some sense of control over this, I don't think it is fair to penalize us for it.
To reiterate, I'm fine with this if this is what everyone wants, to penalize people for approaching or eclipsing NFL records for carries/passes. I just don't think it should be done until we have a way to prevent it.