Curious that tyre temp problems were also reported for the Brawn car in 09. I wonder if it is the same issue, or perhaps they over compensated in the design of the car.
Perhaps they ended up trying to implement the solution for last years problems on this year car. The trouble is that this years car is different to last years (primarily refuelling).
As for standardised weight distribution, is that static weight on the scales? In which case it will be largely irrelevant when you throw in the aero downforce. Personally I think it is something lost in transalation, it could be that Pirelli have said that they will assume certain parameters in the tyre design?