Okay, so we've had a go at the pax who have not had their seatbelts on when they should do however why have we not queried what the hell the aeroplane was doing that close to a thunderstorm in the first place???
CAT=undetecable and often unaviodable.
Thunderstorm Turbulence=Very bloody obvious and easily avoidable, or at least avoiding the worst of it.
This whole incident was totally avoidable.