Your argument is down to the weights.

There are other communities where movement in the language came from outside tooling that built extensions on top of the language, such as Sass or TypeScript.

It always comes to be a social problem. Sort of. I want to use X instead of Y, but maybe everyone does not want the same, or adaption of X is harder in technology wise. So I use wrapper Z that compiles to Y, and avoid some problems, but bring new problems. Maybe these problems are smaller ones than just keeping to use Y directly.