I see the point but I think the article is overplaying its hand. Sacrificing performance for a cleaner programming model is a reasonable tradeoff, it's weird that it's being criticized as though it were a matter of principle. I'm very much a backend person and I don't like React either -- as far as I'm concerned raw HTML on a webpage as God intended peak UI -- but if you're writing full webapps you're going to need s…
A webpage rendering Xms faster has negative value if it e.g. took 3 months longer to hire the programmer responsible for writing it, or if that programmer costs $100,000/yr more, or if training them to proficiency took 6 months, etc etc. The advantages of well-known frameworks are very real to the business, they just offend some programmers' sensibilities which should be simply ignored.
In any case, the IBM analog is also weird/wrong. The takeaway from IBM has to do with bureaucratic decision-making and especially the principal-agent conflict between people who buy systems like IBM and people who have to use them. I have never seen a similar dynamic be responsible for the decision to use React. There is no React salesperson wining and dining the C-suite.