Yes, if a weapon is poorly balanced then it is a poor weapon. This is exactly why double-bitted axes and sledgehammers were tools, not weapons. And your question regarding how one swings a two-handed weapon is perplexing, not only because "two-handed" is a term that can be applied to a lot of different weapons that are handled differently, but also because Sten's weapon is a creation of total fiction. Its proper use is entirely up to whoever happens to be in charge of the canon.
That is completely wrong, balance is dependent on the role of the weapon, an axe or hammer will be top heavy because they really percussion, a sword on the other hand is typically balanced toward the hilt. The term "Two Hander" is used for weapons that require two hands and its a generally accepted term to refer to greatswords, Two Handed just means a weapon that truly requires two hands. The weapon is not myth, this form of the weapon is an exaggeration of real war hammers therefore the most accurate assumption we can draw from is info on how to wield real pole arms. Also double-bitted axes did exist in combat
If he's gripping it at the end of the handle for maximum leverage, that means it'll take him longer to swing, and it'll be harder to control once he gets it swinging. This makes the task of getting behind its optimal range much easier, even for an opponent like Shale. If he grips it halfway along the shaft (like he did against Alistair) not only is he not swinging with as much power, he is also not able to make full use of the weapon's length.
You seem to be relying way too heavily on this idea that she's just going to catch this thing without a doubt, this isnt a baseball, this is a weapon being used by someone who has used weapons their entire life. Holding the weapon halfway down the shaft reduced power, that in no way means the power he's delivering wont be lethal.
Total generalization. Weapons are different, encounters are different, opponents are different. Using the lighter and more maneuverable Asala against smaller, fleshier enemies is not the same at all.
Asala was given to Sten right before he left for the mainland, he could've used any weapon in any order, the fact that he chose a maul (if you want to use the comic as support) supports that he's had training with it. Plus you just made this conclusion that he wont recover the weapon before being hit, what information supports that he's that slow? Again if we go by the comic, it would imply that he was barely missing Alistair let alone Shale
Given that she can rip stones from the earth and throw them, punching is certainly not all that she has done. And if your opponent insists on using a massive maul, it certainly makes it that much easier to grab them.
You mean that one other attack thats clearly just a gameplay mechanic? I just dont understand why you insist on arguing that its not far fetched to assume that she'll try to punch him. How much easier? Again im not following this assumption that weapons are easy to grab from an opponents hands who has the intention of killing you in a one on one duel
It is a fact, that's why a weapon like that never saw conventional use, ever. As I said earlier, just because a sledgehammer is optimized for "crushing" things in the same fashion doesn't mean it's optimized for combat.
Again its an exaggerated fantasy design for an actual weapon, in this world if functions as one despite its size, plus he's a 7ft+ qunari make of that what you will