为什么 isogit CLI 与 git 如此不同?

Hi. I just came across isomorphic-git for the first time today and was trying out the CLI. When I read on the website that "isomorphic-git aims for 100% interoperability with the canonical git implementation", I assumed the commands would be the same. Yet the basics like `git status` and `git add` don't work like I was expecting.