The three was wide open. Not much time on the clock and you take a wide open shot rather than taking a difficult shot with on time left. I think it was the correct time to take it.
Sorry but no. All conventional basketball wisdom in that situation says go to the rack. If you’re down one you go to hole. You either score and win, or get fouled and have a chance to win it at the line.
You preferably make your move with about 6 seconds on the clock so there is time for a put back if you miss and don’t get fouled.