I don't get why he means with:
"The 2022 regs take away many of the things that help the driver, with things like the centre differential, the aerodynamics and the fancy front and rear differentials."

What is so fancy with current front and rear difs? They are not active like they used to be in 2006 or so.

Anyway what I do hope and what likely was the goal is that the reduction of "setting possibilities" reduces the benefit of using tons of money on testing (simply because there is less settings to test)
As this likely is the area that caused large part of the gap between MSport and Hyundai/Toyota lately.