I disagree this is the source of the polarization. Maybe it's part of it.

I have been coding since about 1983 or so. I shipped high quality products that have been used by millions of people. From embedded software to desktop applications to distributed systems.

I don't think I'm in the "don't understand what code should look like camp" (I mean you never know but the evidence seems to show that I do know what I'm doing). I use AI as a tool and it helps me be more productive. I don't "one shot things that would take me days to do". I use it to help me automate things that I could do manually where it is faster and more effective. I review every step and if I don't like something I adjust. There are some specific situations where it basically does as good a job as I would do in running some experiments, doing some analysis or writing some small amount of code. I still know what the changes need to look like broadly, where to make them, and what patterns to follow. It just automates the work and sometimes does have some additional insight that can complement my views. Unlike me it is all knowing about everything in terms of access to "knowledge". It knows all the details of how a certain runtime manages memory, Linux internals and various open source software. I could go look it up myself (which I'd do before AI) but I don't hold it all in my head like AI basically does. It is also "all knowing" in the code base I work in (more so than me, it's a huge code base, I have an outline and a high level picture in my head but not every single code line) where again I can dive into the code but it helps me extract the relevant information faster.

I think the polarization is more on the how you use the tool, what situations you use the tool for, which domain are you operating in (languages, applications etc.). You can also one-shot simple tools and helpers that are not the production software which is another way to accelerate your workflow.