It is not a joke, but we do not know to what degree.

We are assuming 5 floors.

Floor one will be as hard as Ifrit, Floor 2-3 Garuda Floor 4 Titan Floor 5 First two turns in Coil.

It is meant to be a gear gateway to Coil. But easier doesn't mean not challenging. Expect Geared FC's to clear it in 2-3 weeks, Df 2 - 3 months