[unethical_ban]

The syntax is part of it being easier. Also, though it's been a while since I tried using any official git documentation, bzr's website had handy tutorials, references, and cheatsheets available. Great layout, assumed no VCS experience.

[Crito]

That's not conceptually simpler, that is just easier to learn. Git's concepts actually are simple. You can explain the concepts and guts of git to developers with a whiteboard in a few minutes.

The standard CLI UI is admittedly a weak-point, but it does not appear to have slowed adoption...

[unethical_ban]

I get what you're saying, but it depends on how you learn it. I tried learning both of them through their official tutorials and /their CLI commands/. With git's more confusing command set, I had a harder time learning.