You are contradicting yourself. Either its a "minefield...of edge cases..." Or it's a common-sense model. Not both.

I'm convinced we're still in this minefield of edge cases, not in a situation where we've solved all this, and where the tech to build "frontend" is clean, predictable, free of historical baggage etc etc etc.

All we have done, is plaster over these foundational mistakes and invcompatibilities. We haven't solved them. React doesn't solve the fact HTML was never designed to be a UI toolkit. Next.js doesn't solve the fact that JavaScript is full of design mistakes that prohibit it from ever becoming a safe, sane, reasonable (literally) language. Tailwind doesn't solve the problem of CSS being haphazardly introduced to style a markup which was never designed to be styled. Etc.

All LLMs now do, is having the "knowledge" of the horrors under the plaster, in a statistical model that was trained on examples from an era where 99% of the examples are hardly more than plastering to fix the ever reappearing cracks in the previous layers of plaster.

There is far more to it than all that.

I've interviewed far too many nextjs experts who couldn't do anything else. That's not a skill, that's just knowledge, which at this point is freely available.