That's called a band-aid.
It is very difficult to tackle someone. Power backs like Lynch usually don't get tackled by one defender, especially a DB. Yet, in these vids, Lynch is tackled by one defender every time.
I get the impression that many gamers are only concerned with the results. As long as teams average a certain number of rushing & passing yards, cool. But some of us are concerned with how. The how is what makes football, Football.
IRL, Lynch on the edge, one-on-one with a CB typically means trouble for the defense. In Madden, no worries, especially with cone tackling.
Due to poor footwork and lacking engaged player animations, there's too much open space in Madden. They cover this up with band-aids too keep stats in check. Some folks are cool with it, some are not. The difference in perspective is why someone only concerned with the outcomes can call someone concerned with the unfolding, a complainer.