I think that we tend to have personal biases, depending on the context of our relationships and professional cultures.

I totally believe the graph, if only for things like WordPress, and a number of other infrastructure-level tools.

I know that the porn industry is still big on PHP. There was a post here, some time ago, that linked to a PornHub programmer, talking about their IT stack, and it was all PHP.

It's a boring workhorse. The "boring" part is attractive to IT pros.