Babies aren't supposed to be allowed to sleep unattended with a pacifier???

I just read on the packaging for my son's new pacifier that a baby should never be left unattended with a binky in their mouth and should never be allowed to sleep unattended with a binky in their mouth. This seems very odd to me because I cannot envision a parent waiting for their baby to fall asleep and somehow prying the binky out of their babies mouth. What is the deal with this? My son has been using a binky at night for 8 months and I never heard not to let him...in fact I heard to give them a pacifier to sleep with because it reduced the SIDS risk. Any info anyone can give me to clear this up would be great. Why do they say not to let them have it overnight...my baby WILL NOT fall asleep without his pacifier and wakes easily so I dont know how I would go about somehow getting it from him before Ieave the room :S Thanks everyone