The role progression and the grind regarding it is completely okay as it is.
Mattscott mentioned that he wants to rework the role grinding to be more applying to new comers, it sounds like it will be less of a grind/more easy to complete everything,
This decision will not be the smartest thing to do because there are players that already completed all the roles years ago, and if you change the grind on those it wont be fair to those who already spent
their time completing everything or getting to rank 15 on the weapon roles which is fairly easy considering going from rank 15 to 16 isn't really worth the grind judging its only a chrome skin and a unique 3 slotted weapon, i fear this will make the base population eg. (the old accomplished player) just quit what is already a crumbling game.
EDIT: The dislikes are probably from people who CANT complete all the roles lol so they want a discount or something.. Because i have a good point here.