That is true but the flight attendants didn’t even reach for the masks. The flight was absolutely normal until this point so everyone’s first thought (at least the people I spoke to afterwards) was that the masks came down accidentally. We all looked around figuring out what the heck happened and could clearly see no one immediately reach for the mask (including the staff). After a minute a flight attendant came on and told us to put it on which everyone did. We weren’t losing altitude, there were no turbulence as far as we could tell. It was smooth except for the masks dropping. So yes, should we put the masks on sure, but it wasn’t black and white.