Yet somehow attacking with two weapons is not impractical despite the far greater mental demands and the extra dexterity required?
Greatswords are not like this. This is impractical. Greatswords would be comparatively light and well-balanced. WotC just sucks with weights.
I haven't seen an argument yet for why the rangers' weapon abilities are tied so neatly to enemies (that doesn't really fit thematically) and are once again TWF or archery. Why TWF and archery? Why not longsword or spear?
It looks like most of those are also ceremonial weapons, which makes them heavier than anything people would actually wield.