i back off shit all the time, if the pro isn't perfect and the fall isn't clean than fuck it, there's always something else to get on. I did plenty of stupid shit early in my climbing career so I am not about to criticize Anna, however I will say that the line between solid and sketchy can be pretty fuzzy. Sometimes we all put ourselves in "do not fall" situations because we know our limits and accept certain levels of risk, usually we get away with it. If you aren't sure you can place good gear don't lead trad pitches!