Im sorry, I thought the X was to exit the game. I didnt know it was "not safe" last I checked Ive been playing over a year, and no problems.
Many games have it where you hit the X and it asks you if you want to log out, then it has a log out timer. Many other games dont have that, and dont need it.
I dont think that was the "safe" reason he was giving, but if that's case. I still see no reason why there should be a cancel on it. Both options dont need a cancel.