If you're using git to track document changes then you're almost certainly in the tech industry and are quite familiar with the inner workings of your computer.
For 90% of people using computers right now, asking them to use git to do version management on their day to day work flow would be like asking me to fly a rocket ship to work.
I agree with the OP here, for what it does office is leaps and bounds ahead of any of the other software I've used to try to replace it and I always end up landing back on it.