Delphino has everything that could be considered janky besides hazards and extended hitboxes. It's got walkoffs, water, walls, strange platforms, sharking, ledgeless edges, transformations, short blast zones you name it.
Consider a MU like Ike VS D3 on that stage. On one hand D3 ***** ike against walls, walkoffs, ledgeless edges. But on the other hand water, short blast zones, and sharking can greatly benifit ike. Who gets the advantage from the stage could depend a lot on what transformations occur; if a whole bunch of beaches, fountains, and crazy pillars appear ike might actually like that stage more than neutrals. Now if you forget that D3 naturally wrecks the crap out of ike the stage can greatly determine the outcome of the match simply based on the transformations it chooses. It's kinda similar to Reflexes arguement against Frigate, it's ******** imo. And I feel that Delphino's transoformations can alter the MU way more than frigate can and it's way more random.