I dislike the patronising tone of your comment. If your first assumption is that the interlocutor is monolingual, that makes me think you are used to a quite unsophisticated company.

> I can start pointing out flaws in PHP, and you can claim that those flaws don't matter.

It is context-dependent. For some jobs it is a poor choice, for others - including most of web application back-end development - pretty much none of its so-called flaws actually matter.