[marcotm]

I think that a huge part of Tailwind‘s success is not so much the underlying concept but a combination of several aspects: You get a kind of generic design system (margins, paddings, matching colors, etc.) that are restrictive enough to help make things look good and consistent but flexible enough to not result in a every-site-looks-the-same situation (at least not to the extent many other CSS frameworks did); Tailwind sits at a low level of abstraction above raw CSS that is just enough to make some CSS concepts a little bit easier to use (flex, grid, etc.); the documentation is quite good and getting started is relatively easy; …

Given these (and probably some more) aspects, Tailwind makes it easy to get some good results quickly which helps to convince users that their whole approach is the right way to go. Add very good marketing and early traction and you are where we are now.

So I agree with the article that Tailwind‘s conceptual approach is not the holy grail it‘s often said to be, but it maybe also is not even the reason for its success compared to many auxiliary things it did/does right.