To me, architecture starts all the way from the top - even before you write a single line of code, you do the DDD (Domain-Driven Design) and then create a set of rulesets (eg. use the domain name as table prefix) and contexts and then define the functionality w.r.t to that architecture. LLMs can do all this - only if you ask them to explicitly. So, they are pretty useful to brainstorm with, but not autonomously design reliably and push it to production with your eyes closed and support a 100,000 user base. It's a far cry from that.
But sure, you can upsell to management about the vanity metrics like lines of code and get that promotion with LLM. But, it's still not software engineering.