For sure, but they're talking about CSS modules, where styles are isolated to components at build time.
CSS modules are critical in a large web app for those rare styles you can't accomplish with Tailwind, but for the vast majority of styles I do not want to be hand-writing them. Plus, unless you're extremely strict about using CSS modules, you don't escape the horror of styles being inherited from global classes - on the other hand, a robust library of utility classes like Tailwind makes "inline" styling so easy you're likely to end up with almost no hand-written CSS anywhere.
CSS modules are critical in a large web app for those rare styles you can't accomplish with Tailwind, but for the vast majority of styles I do not want to be hand-writing them. Plus, unless you're extremely strict about using CSS modules, you don't escape the horror of styles being inherited from global classes - on the other hand, a robust library of utility classes like Tailwind makes "inline" styling so easy you're likely to end up with almost no hand-written CSS anywhere.