This is a real problem with discussions about copyright, because this is a great example of something that is a mic drop on a message board that will get you tossed out on your ear in a court of law.
Only because of the presentation. I think the same argument could be made in a more professional way.
As a society we have to choose where to draw the line between the rights of the author and the rights of the consumer. Every right that we extend to authors is a burden on society, and we have to figure out the point at which returns for the collective are diminishing
we need to stop looking at accessibility as something we add occasionally to a product when things are going well and we want to feel nice about ourselves.
the best way to do it is through things like this, where the content is available to you and you can choose how to consume it - dark mode, but maybe also reader mode, large fonts, wide screens, text search, etc - these should be considered the basic necessities, and then anything you want to do to make it look nice and feel creative is on top, as an option - even the default option if you really care about marketing over content.
Re-read my comment, I said that anyone can do whatever they want with their own copy. But once they start distributing a modified copy is when their is a problem.