That was some shit, killing your first two companions, who actually had potential. No. You can't have them.
Killing your intro companions in a forced cutscene is some sort of Bioware/Obsidian tradition, I think. NWN2, Dragon Age 1, Dragon Age 2, and even Mass Effect had some red shirt die at the start.
Forced companion losses are really frustrating for a player and I don't really like them. On the other hand, if you do it, it can be used as a tool to involve the player emotionally in the story - like with the forced death of Gorion, the forced death of Kahlid, or the forced abduction of Imoen.
This didn't even do that though because their deaths were incidental. The bad guys didn't even notice you were there.