Katamarino, I didn't offer a reason for the power down of the engines, I said there was a simultaneous noticeable loss of power. Whether this was the pilots doing or not the fact the aircraft had been put into a nose down right bank attitude does not suggest full control. Also the pilot applied high thrust on the engines shortly after and maintained a higher thrust throughout the turbulence.
Michael, several passengers did end up wearing eachothers drinks. As for the cabin crew I was quite disappointed as the pa consisted of 'the captain had put on the seatbelt sign due to severe turbulence, he has also instructed the cabin crew to cease services and remain seated also. He expects this to last 20-30 minutes'. I always keep my seatbelt strapped and while I know that it's highly unlikely an aircraft would ever break ip these days it still scared the s@@t out of me.