Most potential users of VBA don’t know JavaScript or any other language. And VB is way more accessible than JavaScript.
I love JS, but it's not that accessible and a poor first language for people. I just enjoy the shear flexibility of it.
https://docs.microsoft.com/en-us/microsoft-edge/windows-runt...
I'm sure Microsoft is probably at least considering making JavaScript work well with existing Windows APIs.
https://social.msdn.microsoft.com/Forums/en-US/ebb5e04b-d00a...