It seams to me that a better place to do the authentication is the Front Controller, you can add annotations/properties to the Routes and have the Front Controller check based on the matched route.
Having the Router return a different controller action based on login status seams like it could cause WTF moments for someone not familiar with the project.
Great, in-depth, talk on Exceptions now being thrown in the PHP7 engine. Nicely succinct examples in the slides. Very well done!
Nice talk :) .
One suggestion : Next time when you share your screen, increase the font size for better visibility.
Thank you once again for sharing your experience.
Awesome explanation of Exception handling coming in php 7
Great explanation of where to put auth and acls in your application flow