Well, its not necesarily metagaming ...
Technicaly even when you enter the room for the first time, you can steal their equipment ... but i agree it dont exactly feel right. :-/
Good point about boat tho ... that scenario is extra anoying, even tho one must admit that its the only place in whole EA where pushing characters to instant death makes sense ... concidering that its just one HUGE edge.

No it doesn't make sense. Boats sails on water and falling in water does not even mean instant death for 2 years old kid.
But I guess it doesn't make sense to discuss about what would make sense or not.
Instant death is boring in video games and all kind of games assume that.
Hopefully we don't bleed to death each time a bullet hit us or each time we have a big crash in a racing game... It doesn't make sense, but it makes better video games.