Traction doesn't magically change across iterations of cars.
I feel as though this is more realistic for this years cars due to the more minimalistic areo on the rear wing and wanting more of the downforce from down effect. because of this there is going to be less pressure on the rear of the car making it easier to spin due to the down force being placed in a different place of the car. the same reason why its easier to lockup without ABS because there isnt as much downforce on the front of the car. i may be wrong but i feel as though this would make sense
