I'm saying they needed Bonnano for something and I doubt it was permission LCN isnt known for telling more then who needs to know when someones getting hit. I would guess they needed him and offered him something. Why risk him telling Galante and having to go to war with a fucking maniac. Even thinking about a Dellacroce-Galante war gives me chill. And CH Gambinos were a step or two down pipeline. And it's no secret the celebration with Bonnano sidgys and dellacroce infront of ravenite follwing the hit.