I'm sure not, they can't make the next year car if don't know why the car slow or why the others can develop so fast and the updates what they make never ever work! Dont be silly...
I only one thing can imagine that the Mercedes didn't tell something about their wind tunnel or between the wind tunnel and simulation program.I remember when beginning of the season Totto said they found the problem. So it eas just only one problem. Since then they race by race faster.I remember the Mercedes always had same problem as Aston.