I agree. We should not be really glad that he will reach room temperature soon, because the man will be in hell forever. I remember an episode of JAG...the admiral refused to let Harmon Rabb observe the trap set for the admiral’s enemy because, the admiral explained, Rabb would become as bad as the enemy was, gloating in his fright or death...
You may wish to observe it's unfortunate that he lived his life in such a manner as to merit spending eternity in Hell, but I see no problem in observing that this world is a better place without him.