If you go in with a premade with people that have the same mindset, then there really isn't any difference. Both ways can be done just as efficiently.
The problem is your asking a rhetorical question that there really isn't a correct answer to. In your OP you ask:
In my opinion, the answer is no. People should play how they want to play. What's wrong, is going into a duty finder match and expecting people to kill all the mobs, especially if the majority wants to skip. (not saying you do that)
