I’ve written tooling to support lit-html and styled-components in editors. Template strings are sort of nice to write but complete pain to support in editors. They are just like a macro language, so you end up with stuff like: `<${tag}>...<${tag}${slash}>` which is not possible in jsx. Even just detecting syntax errors is a pain

Obviously if deciding between making life easy for editor implementers or making life easier for coders, the coders win, but if something is unnecessarily difficult to build good tooling for, that’s a sign of poor design in my book. And coders will ultimately suffer too because their tooling will suck and because their code will make use of all the crazy flexibility the library allows.