Recently I was playing Tera and noticed a very important thing. Tera is a game where both dodging/blocking and holy trinity coexist.
Simply put, when your party is overgeared or encounter mechanics permit complete damage mitigation, no tanks or healers required/desired for the sake of speed.
On the other hand there are encounters with high attack rate mobs, HP sponges or some time gates which make fights considerably longer. The latter require holy trinity to be used.
So, basically both DPS rush and holy trinity are terminal cases which happen when players optimize their gameplay. I don’t think it’s ever will be worth arguing over which is better because it just depends only on how game is designed.