As someone who moved from CVS, to SVN, to tla/GNU Arch, to git (shortly after initial release). I haven't found any reason to move on from git ever since. Each step was a major change in features and ease of use. It's hard to see it as a failed system, with "bad" user experience.

And the whole premise is nonsense. I certainly haven't spent more time on learning git than doing the work in the last 15 years or so of using it.