I've stop play ON LINE against unknown people. Only one exception is Nordschleife, i can go there in PRO mode against Experienced, this doesn't bother me at all. Still i am going to be last but at least in good style 👍
EA makes big mistake, because i would at least do some sort of sign or an icon next to players name, showing their setup. Lets say one star for PRO mode, two stars for Experienced and three stars for Normal. Or like in SSC maybe they could do a list of settings used by players in the lobby. So in this way you at least know against who you competing. Line in 24 hour racing while during one race you have couple of race class racing in the same time but you are not Go against LeMans car in a GT car.
Once you race for long time in EX mode then after switching to PRO theres a disadvantage for you to learn new physic from scratch. Or at least you need to do two or more laps to get use to change in how car behaves.