1. I don't know if Sharper scored or not.
2. The clock would have stopped on the pass to Colston no matter what. It stops to move the chains. The Saints would have had time to either kick a field goal or run a play.
3. You can't fumble out of bounds to stop the clock. That's a penalty too; so it's either an illegal forward pass or an unsportsmanlike conduct penalty. The result is essentially the same--maybe even worse.
4. This is just stupid. It had no bearing on the final result anyway.
5. He wasn't down...the ball was coming out already and that is the rule.