It's alright, don't be so sensitive
To the last reviewer: We all pay our tributes in different ways. In this case the maker wanted to do it this way, to make light of the situation. Maybe it isn't what the Irwins would have wanted, maybe they don't care. But I thought it was fine.
The only way I see this being justifiably taken down is if the parties that this game involved were truely offended and wanted it taken down. Other than that, the users have no right to complain about it. If you see th summary and find it distasteful, don't play it. No one is forcing anyone to exprience the game. All you have to do is either close the window or press the back-button and go on with your life.