Yeah, the autopsy is gonna tell the story imo. If they died from blunt force trauma from the bridge collapse, boats in the water makes zero difference. If they drowned, then that's a different thing, although it's quite possible that the bridge could have pulled them underwater.
In the end, it may have been that there would not have been enough time to call them to get them off the bridge in time.
But they could have at least tried. I have not heard where they were positioned on the bridge relative to the ship's initial collision position. But it sounds like they got no "Run like hell!" warning at all.