Agreed. This is a dumb story. A $5000 display ordered with upgraded, low-reflectivity glass must be cleaned with the INCLUDED cloth.
Do you read the manual when you buy a monitor?
They're all pretty much the same and work out of the box, especially an Apple monitor. I can see a lot of people just setting up the monitor and tossing the manual. When they see the cloth, all they think is "cool, free cloth".
Also, you have to educate anyone who would think to clean or touch the monitor screen in your absence, like cleaning staff, significant others, your kids, visiting relatives, or whatnot.
Unless there's a huge warning sticker on the plastic that usually comes over the screen, I wouldn't even think that there was special care required.
Of course, that's assuming I'm setting up the monitor myself. In an office environment, it might not be set up by the actual user, and the user might not be given the manual or know about any special care requirements.
The only reason why this special cloth even made the headlines and why it's a hot topic for discussion is because it is considered an outlier from a care perspective.