sorry but dealer don't make decision when it come to warranty a least from ducati, Ducati will look a customer history, type of bike and any modification. did you think a dealer is going to lie to the regional tech rep? a soon ducati get a warranty claim for over $2500 they will ask for picture of the bike, but a claim for over$20k the regional tech rep will be in that shop checking out the bike.if the dealer lie about the claim they get "mark" which is like loosing your word for ducati "NO BUENO" because now they can"t do claims for less than $300 with out calling ducati.
and yes the op was trying to get the bike fix under warranty.otherwise why he filed a warranty claim?