Sure. They could have told that story. But they didn't.
In this case, it sorta becomes a weigh of the costs of doing so. Does it really build the story? I mean the time taken to script these is time not spent making something awesome like a falling through the sky and killing the big bad as he teleports through the planes etc, etc. Which comes full circle back to the trope angle Ash was talking about. Not that I don't disagree with you, but something has to give and take priority.
Having characters with motives and behavior that make sense would definitely build the story for me. I 1000% would rather have some well-thought-out characters that I actually care about than a falling through the sky and killing the big bad as he teleports through the planes. Ask just about anyone who watched Game of Thrones whether they would rather have the well-written dialogue of Season 2 bringing out the genius of Peter Dinklage and Charles Dance, or something awesome like big-budget dragons of Season 8 knocking over entire cities with their super-mega-powerful CGI fire breath, at the expense of good storytelling.
If something has to give, let it be falling through the sky and killing the big bad as he teleports through the planes that gives, and not the possibility of being invested in the characters that gives.
