Why should s/he be using it? Because you think if it suits your requirements it must suit everyone else's?

It's called hyperbole. Which is also what my parent was doing.

And actually, for most cases, yes using a framework is a better choice for nearly any skilled team with PHP: it's too easy to get it wrong, and now you have a massive security breach. See any exploit database for examples.

But you didn't say use a framework. You said "use this exact framework" with no idea what they were going to build.

Symfony has similar generators as well.

Yeah, Symfony/Silex are great too.