… the concept and understand why it’s a thing. With that said — please feel free to use CSS-in-CSS — on no terms are you obligated to use CSS-in-JS. Whatever works best for you and makes you happy is hands down the best solution, always-always!
Indeed! I’ve seen this happen often. A new way of doing something comes in, and many jump on the bandwagon considering it and evangelising it as the “right way to do things”, which is completely misguided and wrong.