I understand your opinion on it, however, my point was to (and this is friendly sentiment, not a flame war starter) say that if others do like to experience the game differently (i.e. PL'ing instead of grinding through missions and end game content), then let them.
I can give examples where PL'ing greatly enhanced mine and my friends' game experience (well after we all had level 50s and experienced end game content)
I will share simply for the great memory and give others ideas (and possibly different perspective):
3 friends and myself welcomed another friend to COH (a newbie whom we coached through some early levels). When he received the FrostFire mission in his teens, we all decided to build him support characters ( all Radiation ... Controller, Defender, Dominator) and PL'd them all to the level to participate. We had him crank up the difficulty, he read all the story arc, and stated many times "Man, this game is incredible, they've thought of everything, it's so cool" .... "Man guys, this is the most FUN I've ever had in a video game ... thank you thank you"
Without the ability to PL, I am not sure the experience would be as great as it was ...the 4 CoH veterans were able to level the night before, build the toons that made this memory possible .... This is 8 years ago, and still I wax emotionally about it. And damnit I miss the ability to do it (or something like it) again.
Again, I will say thanks to OP ... it's a healthy discussion topic.
Perhaps Valiance Online (are we gonna adopt VO for it ?) can understand this and foster a (appropriate time and place) system for it.