Of course, I understand that it is very expensive to contain both modules (JSM) and JS (regular) (we are talking about the source code of the library itself). But since you take on the responsibility of carrying the banner of progress and create more and more new versions, then why not support JS, which has thousands of examples...
And how can people teach the library after that? I don't mean myself or my videos at all. But on the same Stackoverflow there are hundreds of questions with solutions, codepen, forums on the library itself, hundreds of videos on YouTube, other video lessons that are based on old code (!!!). A new person comes, starts doing the lessons and immediately gets a bunch of errors due to the fact that the authors are too lazy to copy and paste the JSM code into JS. And he leaves (we are talking about a conditional beginner who expressed a desire to learn ThreeJS) to learn React...