There was no imminent threat that's why. It was Reeva and she was defenceless.
He couldn't invent any facts to support his lie, because Reeva had to be mute throughout and not move the handle because she knew she had locked the door. Thank goodness for a common sense conviction.
Putative - you know what that means? It's totally irrelevant that there was no actual threat, so why keep repeating that he was mistaken? Common sense conviction... totally lacking in sense rather.