Warning:This is only a dumb suggestion.Don't take it seriously
I suggest we add a new attribute for the drivers name:KERS knowledge.
That means he/she will have to learn how to use KERS correctly.Such as if you are live,when your drivers have KERS knowledge of 1,they will deploy KERS later and a KERS knowledge of 20 will use KERS quicker.And when you are not able to attend the race live.The drivers will use the KERS knowledge to know where to use KERS or where not to.Such as a driver with KERS knowledge of 1 will be "stupid" and use KERS even when he/she is braking and then when the KERS knowledge is higher,they will be able to use less KERS when going through the corner and at KERS knowledge of 20,they will know they can use KERS when to use KERS or when not to such as entering a corner,exiting the corner,exiting the pitlane to defend their positions etc.