>>91277618All the shit he does makes perfect sense in the context of the episode though.
The whole point was that Sokka isn't your run-of-the-mill swordsman, he's inventive and uses the environment to his advantage.
Sokka subverts all the challenges.
The calligraphy test is about leaving your mark. There's nothing distinctive about having perfect handwriting like everyone else so he does something that stands out.
He sucks at art so he gets creative with the painting test and creates an idealized version, rather than attempting to copy the landscape.
The landscaping test reinforced Sokka's knack for using what in the immediate vicinity to benefit him.
These three points culminate in the Space Sword. It's distinctive like his calligraphy because it stands out and isn't like any other sword. It's idealized like his painting because it cuts through pretty much everything. It's opportunistic like he was in the landscaping test because it takes advantage of the meteorite that was in the area.
It's a pretty good summation of his strengths really.