Probably. It's just that I've always used .js for my projects (decades). Such a rename would likely result in configuration changes to the other tools I use,

Probably. It's just that I've always used .js for my projects (decades). Such a rename would likely result in configuration changes to the other tools I use, but indeed they are better documented. When faced with a multiplicity of conventions I pick one and stick to it; the tools are flexible enough to work with it I'm sure, the real issue is of discoverability.