1. It's not hard to disable Cortana and internet-assisted start menu search completion. I assume that's what they mean by "keyboard scanning and voice recording" because I don't think there's anything else like that in the OS. It is possible to disable telemetry. In general Windows 10 does come with a ton of cruft but it can be disabled with e.g. https://github.com/Disassembler0/Win10-Initial-Setup-Script
2. Disk fragmentation hasn't been an issue for awhile. Defrag runs as a scheduled task in all versions of Windows 10.
3. I like UAC. The article claims that giving users a dialog box to permit admin access is good for malware, but the alternative is taking admin away from users altogether on their own computers. I don't think this is an acceptable tradeoff.
4. Windows has arguably the best plug-and-play driver support of any operating system. It's not hard to find drivers as the article claims.
5. The article claims that it's difficult to figure out why your startup is so slow, but task manager has a "Startup" tab now which tells you which startup items are consuming a lot of CPU at login.
6. The article claims that you can't disable Windows Store apps, Windows tips, and ads in the start menu. That's untrue. I don't even have Windows Store installed as a Windows component, I have no idea what "Windows tips" even is, and my start menu is devoid of ads https://i.imgur.com/xy69BWe.png
I think Windows is pretty bad and most users would probably be better off running Lubuntu or something, but there's no need to resort to exaggeration to make that case.