Yes, generating new code is a fairly small part of my job too. But this is also a pretty common take re ai.
Maybe I'm wrong, but generative ai seems to be eating human capabilities for breakfast right now, and we're only ~8 months in. Today it can do a small part of a small part of my job, and rather more of a junior dev's job, but where are we going to be in five years time? I'd quite like to still have a paying job over that timescale.
People used to think that creating art or music or playing go or whatever, were activities that required a human meatbrain. Turns out its all just (effectively) a bunch of parametric equations. What if the non-coding skills you list will be similarly amenable/vulnerable to automation by ai?