Honestly. By all accounts Leeds wanted to keep Walters. He is behind mature players and two other young guns as a prop, and has only really started his transition there over the last 6 months.
The lad is from the NW originally and to me seems a bit daft as a brush: he could be a very good player (or maybe not) but if the lad has no patience despite the club investing 3/4 years in him, he can’t be forced.
Maybe he just wants to get back closer to family at the end of the day who knows.