Diag is that the injectors need to be removed for professional cleaning, and the fuel filter needs to be replaced. Makes no sense, but that's what happened to my bike with only 900 miles on it.
The fuel filter may have a defect and that should have been explained to you by the dealer. Injectors removed after 900 miles for cleaning? That is straight up crap unless once again, they were defective or clogged brand new. It will be under warranty and warranty work doesn’t pay well for the Dealers so the entire diagnosis sounds very strange. At least it will hopefully get fixed. Good luck. PS. Did you ride through a marshmallow cloud by chance?