This isn't contrasting Ruby to PHP, this is contrasting the web that was with the web that is.
And actually, even when Rails was founded the PHP stack was inadequate for this -- which is why current practice includes all the parts that antirez is complaining about? Gems? PHP has composer, barely any serious project doesn't use it. Rack? Granted, once the PHP server is setup you don't have to account for an abstraction layer. Rakefiles? I don't think there's a standard task runner for PHP, but e.g. Laravel has envoy and I would assume that almost any project needs some kind of shim there, even if it's just shell scripts. YAML? Well, erm, ok, I won't defend that…
The times where PHP means directly accessing a `.php` file for every "page" have passed by. If you look for simplicity there, oh traveler, beware…