I agree with you if someone is running through enemies that are need to be killed to progress, but I'm never going to fight arbitrary battles that aren't required to finish the strike. The mundane and repetitive strikes in D2 are monotonous even without having to kill inconsequential enemies. They can't drop anything of value, XP in D2 is useless, and the strikes are long enough as it is. Also, I think you're real point here is less "don't run ahead" and more "don't die so much." That is an argument I can definitely get behind.