This guy is absolutely right - the C in CSS stands for cascading.
What Tailwind is doing is rewriting the whole thing that CSS is and putting it into easy-to-write classes.
This could be handy to you, yes, but unfortunately you're missing the whole point of CSS which is to have cascaded stylings.
To help you understand this a little bit better, one could have a look at why CSS was invented and where it comes from:
In the desktop publishing world (books, newspapers, etc.) this kind of cascading layout rules were used long before there was the first HTML page on the web. This should be nothing to be mixed up with regular programming. Change your view on that thing and you will understand.
It may sound harsh but Tailwind is a way to tell "I'm a programmer, I don't understand CSS and I'm not further interested into".
Aside from saving money, they're doing it also to generate sales.
In iPhone 15 the missing button will be the feature.
Some years later, say in iPhone 18, the re-introduced button will be the feature.
All that happened before with Apple devices. They took away the form factor of the original iPhone SE without replacement just to bring it back with the iPhone 13 Mini. Also they took away the ports of MacBooks to end up with an USB-C port only - and now - the latest 14" MacBooks reintrudice a wide range of ports as a.. can you guess?
It's a question of the topic. Some topics need to be handled synchronously. And if you don't answer in a conversation this is legitimately perceived as "rude".
Maybe coders aren't the usual targeting group but print media is paying plenty of cash for typo licenses.