They call that incision the most debated 5mm in plastic surgery. The reality is that the incision is tiny, placed in a location that nobody see's it (except your puppy looking up at you from below) and the amount of anatomy that you can see is undisputably superior.
Something to bear in mind is that not all rhinoplasties require that much visibility. If you only need a little work here or there, you may not need to open. If much work needs to be done, then pulling your cartilage and tissues out through a nostril and reshaping under those circumstances doesn't make sense (to me). I'd rather take the 5mm slit and look at everything as it stands in nature, not as it stands when you squeeze it through a nostril.
Either way, have your board-certified plastic surgeon evaluate you and see what his suggestion and rationale are.
best wishes,
DoctorMeadE




