That’s not related to Microsoft the company. That’s a result of the archivist systems that I had to mess with to get this stuff restored from tapes and CDs. I didn’t feel like changing it too much. So blame me.
My comment definitely came across as rude and I apologize. Thanks for your work and for taking the time to provide a thoughtful answer :) I'd probably also have left it just as you did.
I prefer it this way! It's better to share the "rawest" backups and fix them up after they've been dumped into version control so that a history of changes is available.