Well, if there is an option to use it, why not?You don't need to use it, right. Just like any other major IDE.
I think Git support is very important. If I had that I could more easily work together with other developers, I could easily revert any code, I could create a branch and even use Git as a backup option instead of the current one which make my IDE to lag occasionally.
Can't really see why Git cannot be implemented within the IDE, especially these days when it is standard in most tools.