The only problem is that, when they "fixed" the fail, they ruined the grip for most cars '90 or older. Instead of doing that, they could have implemented maximum rear tire grip(of RS tires) with all front tire configurations while reducing chassis travel that allows the front end to lift during heavy acceleration. Essentially, allow cars to retain their pre-1.05 grip and acceleration while keeping all 4 tires firmly on the ground. Yes, real world cars can in fact become airborne from high grip tires, but this game's racing soft tires are a far cry from the compound needed to achieve such lift.
It also does nothing for the fact that many cars still wheelie, and will continue to wheelie until grip is further reduced or gravity figures are increased.