I disagree. Many engineers want to refactor across a sequence of small PRs, for example. Small PRs are a good thing, because they’re easier to understand. But today, Git makes this painful. Also, understanding how the meaning of code changes over time can help reduce bugs.

The solution will have to be pluggable. But I think it is possible, and there are sane things to do (e.g. fall back to vanilla git) when there are missing plugs.