What is your suggestion?: Add a delay to the game ending after the guardian reaches 100% health in guardian of the rift. Delay doesn't have to be long, just enough that everyone can hurry and dump their stones. (can be discussed amongst people in replies)
Is this in OSRS?: Was just released
Has this suggestion been accepted already?: Seeing it was released yesterday, I'd say not
How would this benefit Alora?: Would allow people to actually gain experience from the stones in their inventory if someone was to dump all theirs at once and end the game.