Pete Hines also says "companions can be killed like pretty much anything else"
I couldn't care less about spears, but I'm a little disappointed that companions can still die. I never used them in OB because I found it too stressful trying to babysit them, and it was refreshing in Fallout: NV to be able to use them without having to worry about that. Oh well, hopefully they can take care of themselves a little better this time around.