Right, I believe so too. I work in aerospace software, and, for as remarkable as the GPT code generation examples have been so far, I think that even if it could write aerospace software, it would be because humans have spelled out the requirements so precisely that we really aren't looking at any substantial reduction in (human) workforce.
You're unlikely to be able to ask an AI tool for "flight management software" and get what you want. This stuff is extremely complex, with lots of moving parts and interactions with other components and with government regulations. You may be able to successfully ask for some specific function, but again, in order to understand that level of detail to even know what to ask for, you have to be pretty involved. It can't just be some non-engineer asking for things they don't understand.
Never mind the challenge of certifying the resulting software for use in commercial airspace...
And while I think AI tools may be a help (not unlike Stack Overflow), I think it would be a really big mistake to start replacing novice junior engineers with AI tools, even if we could do so, because we need senior engineers who really understand this stuff, and most of the training for aerospace work is on the job.