It's not wrong, it's playing to the strengths and weaknesses of your party.
If the party is not geared and someone forces speed run that could equal: Deaths, arguments, people quitting, having to wait for reps or leaving nad have a 30 min timers on said person who leaves etc... in short, wasted time and a longer run.
Where if the person sees (or listens to the group who doesn't want to speed run it) that it's maybe not the best idea and went in smaller but steady pulls there wouldn't be an issue and would get the dungeon done faster than the above option.