The author's reasoning behind not squashing: https://blog.ploeh.dk/2020/10/05/fortunately-i-dont-squash-m...

I can understand they don't want to oversquash - I rebase & squash so that each commit should be able to stand on its own. I think the above link is a good argument for squashing (and rebasing) to the point that each commit should leave the system in a state where everything works, because otherwise you can't use `git bisect` and actually determine if it's good or bad. I will often have more granular commits where I break something and then fix it in the next commit.