Say if this had happened at a docking port to a space station, regardless of the severity, it would have been fatal for everyone (assuming people in transit wouldn't be in some kind of suit meant to protect them from the vacuum of space/or radiation inside of a ship that is supposed to do that).
Radiation is really something you don't worry about until everybody is safely repressurized.
Edit: Chris Hadfield talks about it: https://www.youtube.com/watch?v=2gaFXZWhp4k
As an aside, I wish I could be involved with anything dealing with space and exploration… it all just seems so fascinating and so much potential not only for economic development, but even to understand who we are in the context of what is or may be around us.
Thankfully I think that safety is something that economic pressure will address really well with commercial spaceflight. High-profile accidents didn't sink either the American or Russian national space programs but I think that at least in the foreseeable future commercial outfits will feel a lot more vulnerable . A high profile deadly accident for SpaceX would be devastating for them; at least moreso than an accident for a government agency with some strategic military purpose partially behind it. I expect commercial spaceflight companies to take safety at least as seriously as government agencies (at least while they are still in their infancy. Once SpaceX becomes the real-life "Union Aerospace Corporation" that might change. ;))
I think we can draw a lot of parallels between helicopter flights to offshore platforms and a shuttle into space.