You’re right—“you failed, what happened” does create a mental frame that “what could go wrong” does not. I don’t think “how long could it take if everything goes as poorly as possible” creates any more useful of a frame than “you failed, what happened”. But it does, formally, request a number. I don’t think that number, itself, is good for anything. I’m not even convinced asking for that number is very effective for eliciting the “you failed, what happened” mindset. I definitely don’t think it’s more effective for that than just asking directly “you failed, what happened”.
You’re right—“you failed, what happened” does create a mental frame that “what could go wrong” does not. I don’t think “how long could it take if everything goes as poorly as possible” creates any more useful of a frame than “you failed, what happened”. But it does, formally, request a number. I don’t think that number, itself, is good for anything. I’m not even convinced asking for that number is very effective for eliciting the “you failed, what happened” mindset. I definitely don’t think it’s more effective for that than just asking directly “you failed, what happened”.