critiques centered on the weaknesses of the language itself are missing the most important problem with PHP as a technology ecosystem. the technically rigorous, experienced, professional part of the PHP ecosystem is a minority and the signal:noise ratio is horrifically bad.
Do you know what happens if you put up an ad on a job board looking for PHP developers? You get flooded with hundreds of amateurs or lackluster freelancers (many of whom have no idea how far away from "good" they are) and a very small amount of responses from good developers.
Do you know what happens if you google search technical questions about how to do stuff in PHP? Flooded with blogposts and forum threads filled with actively harmful information instructing you on the wrong way to do things, without having any idea about why its wrong.
Other languages don't suffer from these problems to nearly the same degree. There are issues in the Python, Ruby, Javascript, Perl, Java, C#, etc. communities as well. Those problems are not nearly as intractable and damaging though. The communities of other languages have better signal:noise ratios and its really evident as soon as you try to do any hiring. It makes a difference.