Sure, Opus is next level than Sonnet, but it still doesn't free OP from these handcuffs - It is reading the code, understanding it and making a mental model that's way more labour intensive.
But when you write code by hand, you at least are there as it’s happening, which makes reading and understanding way easier.
The OP's problem was treating the situation as two extremes: Either write everything myself, or defer entirely to the AI and be forced to read it later.
I was trying to explain that this isn't how successful engineers use AI. There is a way to understand the code and what the AI is doing as you're working with it.
Writing a spec, submitting it to the AI (a second-tier model at that) and then being disappointed when it didn't do exactly what you wanted in a perfect way is a tired argument.