Nina Tassler always gives dumbass, untrue reasons for decisions made by the network. I still don't believe the BS she spouted out about dropping JJ from CM because of the spin-off (which tanked by the way). And I definitely don't believe this garbage about a NY block being the reason for Miami to be canceled. I saw a preview of Jersey and it looks boring as hell... and I have no clue who the lead actress is. I don't expect it to last. And I think a 7pm (central) timeslot for NY is an odd choice.
Not to mention canceling Miami for this purpose makes no sense anyway. You could have put Miami in Unforgettable's time slot. Just grow some guts and admit that you canceled Miami because its more expensive to make than NY. Spouting off these idiotic reasons is pointless because nobody believes you!