The fact that PHP stands at 78% and Javascript stands at 2% in the report is counterintuitive. This anomaly might be caused by all the Wordpress sites that are out there, if so, readers should not use this report to steer their career.

WordPress accounts for 40% which leaves 38% not WordPress, which still stomps JS's 2% into the dirt. I use both, but lets be objective here and not cherry pick.

I don't know the numbers, but I would guess that more people sit NodeJS servers behind a CDN or proxy of some kind than PHP, making it potentially harder to identify.