Suggesting that RJ can ignore the mechanics of the craft is like saying an architect doesn't need to follow physics because they are an artist. Sure, there isn't only one blueprint, but there are fundamental rules like the internal transformation of true character that must be present for a story to be well crafted. You're essentially looking at a comparison between a song with a weird structure and a song that is out of tune..... one is a creative choice whereas the other is a failure of the medium's requirements.
RJ's departure from traditional structure in TLJ doesn't excuse RJ skipping 30 years of character development. Using the music analogy, you can skip the chorus but if the notes don't harmonize the song fails. In the same way, if a character's transformation happens entirely offscreen and with no explanation then you aren't looking at a bold new structure..... you're looking at a lack of character development.
The flaws mentioned in the OT, like a missed kick or a retcon suich as Vader becoming Lukes father, are surface level production issues or plot adjustments that don't break the mechanical heart of the story. TLJ's issues are foundational, specifically in how they bypass established character logic just to force the plot to happen. Suggesting that over analysis is the problem is just a way to ignore that the TLJ fails to earn it's plot.
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