If everyone is trying to race clean and only minor taps are happening it's much better as you don't get (or give the other driver) a penalty any more, sadly you also don't lose SR so expect everyone at 99 soon unless they are really dirty or cut lots of corners. Also been hit by a couple of out of control cars, no penalty there either, was almost certain before.
Have not seen enough dirty drivers to know how it works then but I've seen some stuff go unpunished that shouldn't have but also when cars have pushed others on to the grass they have got a penalty, which didn't always happen before. The real worry is push to pass may go unpunished now and if it does I expect racing to get dirty real soon unfortunately.