That's true, I'm not the op, but changesets get in a way when using git for SCM, where the typical workflow is to merge between two branches on the level of subdirectories.

In my company people simply use checkout to apply changes from another branch, but that doesn't handle well for example file removals. It also creates a completely different commit so the branches diverge more and more, making things like rebase more time consuming.

It is a huge pain, which would not exist if we would use SVN as a backed for example.