A quick fix would be putting the orchestrion roll into the MGP store, or for playing X amount of games (like 5 or 10).

Instead of the roll, reward a title for people who reached a ranking of 1600.

They also need to give MGP for playing it, since the matches take a considerable amount of time. Give better rewards for the two top spots, but still a good amount to the last two spots.

Relatively simple fix and potentially gets more people to play it, depending on how much MGP it rewards.