It has always been extremely annoying to fight with people who mistake the ability of building or engaging with complicated systems (like your regex) with competency.
I work in building AI for a very complex application, and I used to be in the top 0.1% of Python programmers (by one metric) at my previous FAANG job, and Claude has completely removed any barriers I have between thinking and achieving. I have achieved internal SOTA for my company, alone, in 1 week, doing something that previously would have taken me months of work. Did I have to check that the AI did everything correctly? Sure. But I did that after saving months of implementation time so it was very worth it.
We're now in the age of being ideas-bound instead of implementation-bound.