(Poisonous) Potato High Plateau using April Fool's Snapshot

I recently played the 24w14potato Snapshot that included the Poisonous Potato dimension, I may say it's incredible the quantity of content added for a single use snapshot, and it would be sad that cool features like the new boss or blocks be left and forgotten.

So the question is how do we add this without adding a whole dimension to game. My proposal is to make two new biomes: The Poisonous Potato High Plateau and The Potato High Plateau

Potato High Plateau: This biome would spawn in Savanna Plateaus, it basically consist on a big patch of the potato tree biome with peelgrass ground. Something like the Mushroom Island no hostile mobs can spawns and the only ones that are able to spawn are the potato chicken, potato cow, potato sheep and potato pig. 

Poisonous Potato High Plateau: Somewhat the same as the last but the entire ground would be corrupted peelgrass, the chances of encountering one would be very rare due to a structure called "Potasseum" in which you could summon a less overpowered version of the Mega Spud and hostile mobs are allowed, including the potato variants.

https://shorturl.at/ablLX Idea of the Potasseum in which the Mega Spud spawns

https://shorturl.at/tHMRW Small representation of the Poisonous Potato High Plateau