The rule change is mainly for FWD cars that have terminal understeer, but then cars have come a long way. Most FWD cars don't understeer like they used to, which I found this rule to be a little curious.

FWD cars ate opposite of us. They need to hold fronts down to put power down. Just as a big front bar helps us put power down, big rear bar on FWD puts front tires down.

I ran 27 mm rear bar on my toyota and it transformed that sucker into a Porsche beater.

The 370 needs a BIG front bar much worse than any possible change to the rear bar. Increasing the front roll stiffness keeps the front geometry in its happy place increasing front grip. Because of the torsional rigidity of the chassis it also keeps the rear tires more evenly loaded improving power application out of corners.

My car is set up fairly neutral with the help of tire pressures, shocks, and alignment.