Well the Protector and the Wizard knew about space, so naturally they assumed that the rest of this world knew about space. How were they supposed to know this wasn't familiar with it?

But they notice him absolutely fucking losing his marbles.

So the cosmic stage of space starts fading out, returning them both to the ground. Gravity kicks in when Gyre is horizontal, about two feet above the ground, and he falls like a sack of potatoes into the grass.