Actually no. If I hadn't claimed Joe, there would be 3 unproven (Weak, Sessy and me) and town would have 1 cop report and 2 lynches to go on, which would grant you the win regardless what happend. Claiming Joe was the best thing I could do as there was a 50% chance I would survive until day 3, while with your idea only a 33% chance. However, both games were lost for me regardless.