I'm not sure if this is anything, but...
Film-wise, I'm pretty sure we hear "Ryland" enough times to count on one hand. He's almost always referred to as Grace, including when he's in space and could conceivably use any name he wants.
"I'm Grace."
He rediscovers himself, builds his identity, and comes to realize the person he is isn't the person who left Earth.
And he's still Grace when they're on Erid; he never asks them to call him Ryland.
I can't help but smell notes of eau de transallegory in the air...














