I wouldn't like to mash my editor into the project, those things should be separated. It also raises security risks to my head when I see such things.
A dedicated Laravel editor is on the other hand a great idea. But you have a lot work in front of you to fit in all the features PHPStorm has, so I don't know if it's worth the work. At least if you want to profit from your thousands of hours work it will take, it should be working as an application.
I could see the benefit from an editor that doesn't force me to, but try gently to do best practices in Laravel. This could however also just be a sort of testing environment rather than an editor.
To answer your questions: The security issues are too high for me to ever use such thing.