I think it’s a good episode because it shows a horrible situation that is completely impossible to escape. Everyone is dependent on Anthony’s whims for everything. There’s no reasoning with him, no disciplining him. He has absolute control over their fate, and is untouchable. Even if they could kill him, somehow, then what? They don’t know where they are, or if they are even anywhere. There might be absolutley nothing outside of their small existance. And if you’re one to eschew suicide, then you’re well and truly fucked. Forever.
In that respect, it’s probably the scariest of all the TZ episodes. It’s in the “I have no mouth, and I must scream” level of horror.