That's not true. You don't believe how manny bunnies found a habitat on the Omaha beach. In some phase of "flight" the hitbox does not seem to properly work. Same goes for diving. People that bunny hop don't want to kill someone, they want to evade bullets. The deviation is therefore not relevant. The diving can be annoying at times as well, but it does not give an considerable advantage to them, because when the animation is finished they are an easy target on the ground and they indeed use it in fighting situations so deviation is an argument here.
I personally don't mind it too much, but a tiny bit more delay until you can shoot when prone is a good suggestion I think. Bunny hoppers just ridicule themselves, can be annoying, but they usually can only evade, but not get an advantage to kill you. Saw lots of people doing it on Omaha anyway. If it's fun to them - okay. Every grown up player knows it's stupid and kills the atmosphere though.