It's great for influencers and beginners because of the ability to copy and paste examples plus the hype. The moment you put a scenario where there is no boilerplate available on the table, the utility of tailwind goes out the window.

As for Htmx, it's nothing new. I don't dislike it, but comparing it to web frameworks like React is missing the point. A lot of what it gives you (or doesn't) can already be achieved with a bit of vanilla js and, if you're feeling fancy, jQuery. Advocating for it as a replacement for something like React is sort of like recommending a bicycle to someone who drives. Yeah, it has its place, but it doesn't replace the utility of the car. Insisting it does indicate you don't know much about cars - or maybe bikes.

Anyway htmx uncomfortably reminds me of the MVC servers we use to write 15 years ago where the frontend always ended up being an unreadable unmaintainable mess after a few years because the frontend was treated as a random collection of assets for views to use.