There's going to be more of this for Penrith, as their rising talent find themselves in the bottleneck for first grade, while the stars hog all the positions.
They knew Burton was good, but not as good as their two halves, so were prepared to let him go "so he could develop". They didn't realise how versatile he is, and that he can play anywhere in the backs, or at lock. Now they have regrets.
There will be other youngsters in their ranks like Burton, and they will want to have a crack at the top. Penrith's problem will be the contracts for their stars coming up for negotiation. They will have to pay overs, meaning they will be forced to let good players go, or breach the cap.
Could create bad blood for them in the future when their fans watch their future stars go to other clubs.