It would be a benefit to those of use working to complete Mainline Quests and move through the Chapters to receive ranking points along with the rewards given for completing the quests. I've noticed there are players with higher ranking points but who haven't progressed in the game as far as I have.
It would mean double points for a lot of things. Those people would probably still have more points, unless they are really, really far behind you, since they'd get most of the same points you do.
Setting that aside, everything the game designers do that channels people toward following identical paths is bad for the game. Variety is good for the game. Right now, someone can grow slowly, scout way ahead, and place in the top 100 in the tournament every week and still have some progress.