Okay. Then we agree. "Htmx is power tools for using Javascript to alter HTML".
With the implicit premise of starting from javascript you see that as "Power Tools for HTML". Without this premise I see it as "Power Tools for Javascript".
I think this distinction is not only important because I question the premise, but because many people who've talked to me about Htmx are confused about what Htmx is and believe that it works without javascript. This is not Htmx's fault, of course, but it could be made clearer by avoiding easily misinterpreted headlines like this.