What I see coming is simply that there will be EXP differences between lv.50 PL'er and the people getting leveled bad to the point you don't want the lv.50 in the party. Making it so PL can only be useful for healing and outside of party. This is quite fair, and should be executed in this fashion.

Currently right now, this isn't "Taking time to help people out.". The parties I have been in has been a "You scratch my back, I will scratch yours scenario.". Meaning, people take turns being lv.50 and PL'ing while everyone else AFKs for a period of time. This is not innovative game play, there is no learning curve. I also see content before lv.50 being pointless such as the lv.15 and 25 dungeon.

I am glad they are already aware of the issue. I am always in favor of a method of PL'ing, but in this case, this is really taking it too far. Don't embrace PL'ing, just leave the door open and look the other way. Telling people to dash through low-mid level content is okay is "not" how they should be setting this up. Hell, why even put levels in? I understand you want friends to catch up, but how many people am I going to see at 50 and not know how to play their class because they were AFK most of the leveling experience?

Like I said, it looks like everything will be adjusted, but embracing PL'ing is never a good idea.