Taking shortcuts is fine as along as the final product is good.
In fiction narratives, tropes are shortcuts that communicate the promise of a certain result to the reader, and authors should take full of advantage of them.
They exist because they work.
The Chosen One. The Dark Lord. The Magical Artifact. Etc.
These tropes exist because they communicate something effectively about what kind of story we’re being told.
In a way, they are shortcuts to great story, but if the craft isn’t there, the trop will never pull its weight.
The shortcut will lead nowhere at all.