You make no sense. RB's fumbling TOO MUCH by definition means it's NOT realistic. If they were fumbling a realistic amount, why would it be "too much". And no one complains about Play Action not working... they complain about the artificial intelligence of the cpu knowing you're running a Play Action pass. Hence, NOT realistic.
The entire point of the guys post was that he wants plays to not be executed perfectly on occasion, because that would be realistic. Then you respond that it won't happen because people would complain. Then you say that people currently complain about it. Where's the logic there?