No, it’s not just you. The enclosure was inadequate to contain a tiger, regardless of the action of the guests.
Jack Hanna said something to the effect that it would have been a miracle if the tiger could have escaped on its own!
Only if your goal is to taunt the crap out of the tiger. Otherwise, there are many zoos with the same type of enclosure throughout the world.
It would have been rough justice if the tiger had enough time to finish off those two thugs.