And good on him.
Seriously, why would any self-respecting prop stick around, when they're more appreciated up north, learn a lot more, and get paid to do it?
Tight five forwards in this country have been shit on for decades in favour of some mystical threat from rugby league to steal our backs, and our lack of respect for the dark arts is the biggest cause.
The root, of course, is an inbred and severely limited age group system that puts helicopter parenting above proper training and an early start.