It's meant to be ambiguous I guess. Maybe they made it or maybe [SPOILER - highlight to read]: it's just a loop
__________________ Chicken Boo, what's the matter with you? You don't act like the other chickens do. You wear a disguise to look like human guys, but you're not a man you're a Chicken Boo.
I wasn't sure at first because the brothers were still inside the time dome when the ascension/reset occurred, but yeah, I think they made it out. The proof seems to be there, imo.
-Their interpersonal relationship as brothers had been mended.
-We saw them actually break out of/shatter the time dome at the end.
-After the other members of the group restarted their next time loop following the ascension, they stood there waiting to see if the brothers would come back, but they never did.
And also, the brothers never surrendered control to the deity or let it kill them(which is how it seemed to gain even more power over the people inside the time domes.)
__________________
"I am tired of Earth. These people.
I am tired of being caught in the tangle of their lives."