AKA: "martials can't do cool things because realism"
I'm pretty sure it's intentional in the rules that a fighter can grapple an ogre and drag it around. A grappled creature isn't a sack of potatos, it's a creature that's moving by itself, and a skilled wrestler can force it to move in the direction he is pulling.
AKA: "I prefer a game with simulationist tendencies not a glorified board game where rules are there to be exploited."

I'm pretty sure I disagree with what you think the intent is. I think the intent is that people play the game the way that works for them and their group. But yes, a creature is not a sack of potatoes. A sack of potatoes isn't struggling and kicking with all their might against being dragged. Unless it's a sack of living Mister Potato Heads of course.