Yes, Exactly! mercurial is not THAT MUCH better, so it doesn't worth spreading. If it contain good ideas, we should try to incorporate some into Git, instead of making every tool more complex.
But it is better; just how much depends on the situation. If you were the guy who blew away a bunch of Jenkins repos using a “feature” of Git, you might feel differently--https://news.ycombinator.com/item?id=6713742