The page was written 3 years ago. We had a very enlightening family activity at the time. I assure you that even then my boy would not be downcast just because it took 2 turns and not 1. We all enjoyed doing something together. Your attitude towards somebody's mistakes is dismal.
People learn from mistakes.
You also made a factual mistake. As long as you or anybody else did not provide a 1 turn solution, the solution that requires 2 turns is an absolute minimum. If so, I would very much like to hear about it. Alexander Bogomolny 2789874 .