I think the situation (loosely, wasting time spinning your wheels by modernizing things that are actually fine the way they are and may be made worse by adopting "hot new thing") looks worse when you see it through that lens than it actually is throughout the industry as a whole. There are plenty of opportunities for modernization and doing some of the things described in this article that actually make some sense when applied to appropriate situations.
In other words, I totally understand the vibes of this post, it's one of the reasons I don't work in the parts of the industry where this attitude is most prevalent. I would never feel the push to write a post like it though because the poster is I think being a bit dramatic. At least that's the case looking at the industry from my (id argue broader) vantage point of being an expert in and working quite a bit with "legacy" companies and technologies that maybe could stand to have a new UI implemented and some tasteful modern conventions adopted at least as options for the end users.