I think it’s not that you couldn’t have used it but because you discount it it wasn’t something you reached for. If you flip the script as something that’s out there and explicitly look for opportunities to use it it’s there. Alternatively, you don’t structure your commits carefully and thus git bisect for you is a mess that would pull up a giant amount of code anyway.

Heck, I used it yesterday because I had a PR where I was cleaning things in the C++ build system where things stopped working in CI in weird ways I couldn’t figure out but was fine locally. I used bisect locally to figure out which commits to test. You just have to think that a blind bisect search is going to be more effective than trying to spot check the commits that are a problem (and for tricky bugs this is often the case because your intuition can mislead you).

I’ve also used it to find weird performance regressions I couldn’t figure out.