Drone Error
Goh refers to the Project Mew drone as Drone Rotom when confronting Shunya and Lyla, despite it just being a normal drone. I would assume this is an error, although it could be possible that these are the same type of drones that Rotom normally possesses, but it still wouldn't be right to refer to it as Rotom without a Rotom in it. I personally doubt it's the same drone though, because it doesn't look enough like Drone Rotom.