Exactly what I meant. If you're working with people who need to learn what a DAG is in the first place, that adds some overhead. After that you still need to understand that your working directory is just a scratchpad, and branches aren't actually like real-life tree branches but instead they're pointers to the ends of those real-life branches, etc. Not exactly simple.

Conceptually speaking, a centralized VCS -- one where you check out files, make changes, and check files back in when you're done -- is vastly simpler than Git. Sure, it's also much less powerful (and I would choose Git a million times over such a system), but it's definitely simpler.