Laurelorn was facing a slow death as their network enhancements were slowly being lost. Ultimatly with their allying with Middenland, this concern was reduced. However they realized, due to Mathilde, that improving the waystone network as a whole was possible and that by doing so their local area of the network would likewise be improved. They also want a long term relationship with the empire as a whole. I believe that the Eonir would want to have the functionality to restore waystones. However if that turns out impossible they will not be adverse to a plan B, that while not as much as they hoped for is still an improvement.