Well to be fair, I could easily start a thread titled "You will not be able to level with your friends... unless you move in with them, and synchronicze your sleeping, eating, and pooping habits: True or False?"
It is unfortunate that folks won't be able to group up right off the bat, but I doubt it will have a huge impact down the road. At the very least, it will have nowhere near the same impact as real life has. Even the best and closest of friends have different schedules during their day to day lives.