I'm making my second post a newbie question

I probably know the answer to this, but I want to confirm. Ever since the release of heroes and the patch to get full hero parties, is everyone doing the normal mode (NM) stuff solo with heroes now? It's not that I suck at the game - I got myself through Nightfall flagging heroes and using a longbow to pull / tank mobs. I also got through a vanquish and HM mission with heroes - that was about as exciting as doing math for some theoretical physics school assignment with no resemblance to reality. The NM mission regions seem empty, and the only place I can see groups is where the Zaishen missions are with people going lfgzmhm and challenge areas with people going lfg / glf [insert abbreviation of cookie-cutter build here] [insert mission name]SC.
So has grouping in this game been reduced to Zaishen mission hard mode and speed clears? Is there a way to enjoy the "easier" portions of the game in groups nowadays?