Nothing. Keep it simple. There's a reason it has stuck around >inb4 it isn't simple it is
No one chooses to use git. They don’t say: let’s use it because it’s simple. It’s really the only choice because of network effects. It’s one of the biggest glaring monopolies in tech. Think about the barriers to entry of a new vcs. GitHub/gitlab support. Ide support.
I feel the same way when I hear griping about vim or Java. Like sure, there's surface stuff to cry about... Until you start to hear people's ideas. Then you're glad people have managed to mostly leave it alone!
I also thing there's just this class of tools that only make sense when you get to a certain level with them. Learning curves are just steep on some things. That's not the same as bad design.