I find the idea of the SARTech/Flight Engineer (hoist operator) having a say in the go/no go decision interesting but I think it would only work when you're on top the vessel with the door open, hook in hand and they can see what they are getting into. Even then I don't think it would work as it's been my experience that those guys will jump into lava to rescue someone.
I find it 'interesting' that you would NOT involve the Tech Crew in the go/no go decision making process. We call it CRM.