This eventually turns into an incantation and magic. It's how crap gets built up and poor decisions get propagated.
Once you have a working example, you can go through it line by line and figure out what it is doing.
Learning not only what it does but where it's documented - and having to go look for myself to do so - fixes it in my memory a lot better.
I have a years old set of npm/etc. configs in a project I noodle on occasionally, and when I re-open them to look I remember exactly what they do -because- I started from a boilerplate and then went and learned how all of it works.
That doesn't mean an explanation wouldn't still be helpful for a bunch of people who aren't me, but honestly having the tsconfig commented like that is more than sufficient for -me- to be happy.
If people just want to copy+paste it then mark a jira issue as complete, that's up to them.
However, for those of us who want to understand - sometimes it's better to see a working example and pick at it.
So I don't see a problem with any dev having a line of non-understanding as they work. Some peoples lines are lower than others, but we all work that way. So it is all good.
but that doesn't mean you don't understand it.
You can get away with not thinking about it - for example, the error correction algorithms and protocols in tcp, or memory access - and that's because the designers of those layers have thought hard and long about how to keep it from leaking.
For js ecosystem, the designers (?) didn't think much at all. It is hobbled together rather haphazardly over time. Leading to the mess today.