Not really, gearing system and endgame comms from group finder are here to increase pool of players willing to use it. Without rewards, majority of players wouldn't waste their time with random pugs. Before group finder people were propeled by daily/weekly quests, after by GF rewards.
Group finder is main cause for apathetic players that only want to finish FP.
Those people already exist. They would just get a group the old-fashioned way and behave the same without group finder.
If you give people a goal, then there are those who want to reach it more than others. In a sandbox game however, people invent their own goals.