If pointing out that he's using the wrong technical term is 'missing the point', I'm not sure there was one to begin with.
most examples of why php is so easy to deploy show it with hello world examples you'd never encounter in the wild.
yes, you can edit the php code directly on the server that is executing it. just like with python, nodejs, ruby ... and even java if you're not worrying about scalability.
there is really very little difference if you ignore the fact that it gets hard with the codesize and the environment in which the service is deployed in. the language is almost always the smallest challenge.
and fwiw, i'm definitely not "against" php in any way. i think ssr script languages are wonderful for easy development - especially if you combine them with something like intercoolerJS for interactivity. extremely easy to get started and you're even able to make ssr-"components" by just fetching each segment separately, which isn't really any overhead with HTTP2 nowadays.