It's just a paradigm shift. You are used to separating meta-data from data, but many people aren't. On Windows, they try to keep them together.

For example, this script still has to chase all the meta-data (e.g., chmod, chown) separately. What if there were ACLs? The script needs to be changed yet again to support copying the ACLs. There are downsides to keeping meta-data divorced from data.

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