Oh, I quite agree. Always use the right tool for the job. As Einstein put it, “Everything should be made as simple as possible, but not simpler”.

If you’re thinking of jumping back into typesetting because you have the occasional need for that too, you might want to have a quick look at the aforementioned Typst, which aims to be a modernized successor to LaTeX. It can’t compete with the sheer volume of work people have done in TeX over the years to typeset everything from manuals to orchestral note sheets, but it is considerably more humane to work with. In the simplest use cases, it’s not that far from markdown, really. It’s also very nice that content and presentation is entirely decoupled.

I think chances are good that you’d like it.