Except fantasy worlds have lots of rules and principles. Like gravity and physics clearly based in our own. It's silly for stuff to be heavy in one scenario and like a cracked out gymnast unitard for an action move.
I'm pretty sure getting whacked by a 30 ton dragon would kill you instantly, least of all getting hit by a fireball or flame from its mouth roasting you within your own armor. This kind nitpicking is pointless and can be done with almost any game. It's fine to not like it, but it's silly to try and make it seem like something bigger than what it is. It's a game, not a movie or show, stuff like this is commonly exaggerated and dramatized for effect. It's especially necessary when you are in tactical camera and zoomed out it's often necessary to differentiate what is going on in combat. It's why daggers aren't really dagger sized because if they were you would barely be able to see them.