If you insist on nitpicking with a specific definition, you can of course dismiss the points in the OP. But if you try to understand what it's saying on its own terms–it's obviously talking about UI/UX and using the term 'usability' in a colloquial way. All the examples given in there are examples of bad UI/UX. Your point that it's possible to do things now that weren't back in the day, is just completely off on a different tangent than the actual thesis of the OP. I don't even know what to say except that it's a strawman.