True, and he did save the day, however let's be realistic - trailing 2-1 and with his track record, the introduction of Kone was never going to be greeted with wild abandon. Of course to boo him is wrong, certainly.
Fair point mate...that said, it's not productive to try to support vs booing. IMO those that booed Kone should line up one by one and hang their head for a moment or two then apologize to us all.