What jumps out at me is that it doesn't touch OneDrive.
You could argue two potential reasons for this:
1. This script removes only AppX packages. OneDrive is an *.msi package
2. OneDrive is something they reinstall if you remove it, so they really are cramming it down your throat. They wouldn't include it in any debloat script.
Another script to consider that has been around a while and has a number of contributors [1]. that does remove telemetry and optionally many other things. Always back up your registry and systems before using such scripts.
I’d like to think there is a Microsoft developer out there that used this script on the very machine that is helping create one of the listed applications that was removed.
Sure it will have less stuff, but I suspect there may be some remnants purposefully left behind.