If someone is living in Raqqa and is viewing this spectacle on the big screen, there are surely incentives to cheer and smile as directed.
Thugocracies are all the same... If you don't cheer, you could be next.
The piss-ant monster running North Korea, child abusers,ISIS, control freaks... liberals... communists... all thugs use the same intimidation techniques. It's their calling card.