That's incredibly uncharitable interpretation of what the words in the comment say.

Consider this: Word Processing, and Word Processor UX was a solved problem from his perspective 20 years ago (he is far from alone in this opinion). Quite honestly, I have no idea what Word today is doing for me that the Word I was using 2 decades ago wasn't already doing.

It isn't curmudgeonly to say that a product has reached maturity, and does not need changes. This happens a lot outside of the computing realm; a screwdriver from 50 years ago is basically the same as a modern one. A mechanic using his grandfather's screwdriver isn't "proud of being a curmudgeon" they are just using a perfectly good tool that doesn't need updates.