I agree with this.
I was streaming a game a few days ago and there was an instance where a WR made a cut or something and the DB made a very poor reaction (like....the receiver was WAY open). I made the comment, "well, that's a route-running win". It's SO obvious when it happens - that's not a broken game or broken coverage - that's RATINGS mattering!
Like feeq said, some of the "win" and "loss" animations are extreme (like the example above or when a QB misses a throw and it's wildly off). But I think they have to be to an extent, otherwise unscrupulous users could have a chance to manually adjust their player and override that ratings impact (which is obviously unacceptable).
I see SUCH a good mix of coverage in this game. But if you're running a lot of man plays, you really should be running a scheme that has man corners specified in the scheme - it definitely helps maximize things. Using in-game coach adjustments to optimize matchups is also key as they can help reduce the number of those "win" animations.