No it doesn't. I hate PHP with a passion, but there are lots of PHP devs out there who will welcome it if your project solves some problem they have, and they will contribute.

Don't change the language of your project just because of popularity. Use node, python, ruby only if the end result will be a significantly better then the current is. When I say significantly I mean compared to the time you will spend to convert it.

In terms, of end users, those that will actually use the dashboard. They don't care what language you use.