Comment: Re:Need the dragon (Score 1) 87
Even with a craft docked to every module, they probably wouldn't stop having the crew shelter in docked vessel(s) capable of crew-return.
If you have the crew in arbitrary locations, then damage could isolate the crew from their lifeboats. If you require the crew to be adjacent to their lifeboat, damage to that module is still a large hazard, since you have to evacuate it post-failure. By sheltering in the lifeboats themselves, they become the only critical target - damage to anywhere aside from the Soyuz capsule, Soyuz orbital module, and the docking interface is 'fine' for crew safety, aside from secondary debris concerns.
Given the emphasis placed on crew safety, I'd think it'd take an awful lot to convince them to keep the crew outside of the lifeboats during a potential conjunction. The increased risk simply isn't a worthwhile tradeoff for the working time you'd reclaim.
The Dragon (or any other commercial-crew vehicle) would simply add another location to shelter in, and potentially remove the need to shelter in the capsule during some Russian spacewalks (which use the docking module as an airlock, causing crew to potentially be cut off from a Soyuz docked to the Russian segment were an emergency to occur).