I don't necessarily have an issue with the amount of exp you can get in a party, because getting 8 people together is hard at times. I am sure SE will nerf it sooner or later.
I do have an issue with the soloing exp, which absolutelly went to crap after 1.19.

SE is forcing people to party now, thanks to everyone that complained about that btw, but now people are complaining it is too fast.

Solo exp should be decent and not impossible, while party exp can stay the way it is if SE thinks they can push out enough content for people not to get super bored.