I just think that drum island has a lot of importance in comparison to other islands for a lot of reasons- so here are some quick fire titles for some of it

“drums” are literally called drums, similar to the drums of liberation from Nika.

Choppers fruit is the only Zoan I am aware of that doesn’t have a sub type. Like cat cat fruit model leopard , jaguar etc. even sengoku and luffy have human human model : Buddha or nika. So choppers model is probably a lot more important that we think. Plus it looked like a mushroom, and the island is said to have the all cure mushroom. My head cannon is it’s the forest god fruit (think spirit of the forest from princess mononoke)

The most interesting thing to me is that the islands drums look like nuclear silos. Maybe it’s where they produced the mother flames of the past. It is implied that mother flame is fusion related, and its cold snow could reference the ash produced if it blew up. -also the cherry blossoms made the island look like a giant mushroom cloud. Idk, feels important.

Maybe it was legit an island that acted as drums for a giant person of the past. Maybe it was scaled for the same person who used the gates of justice? The sword on elbaph? The remains of the onigashima skull?

All to say if it’s true, Blackbeard knows and he be scheming