When a christian dies, yes. My faith-filled father was suffering and I gave thanks when he died. His death was a blessing. The joy will come when I am with him again in paradise.
Having buried three friends in the last month, all of them Christian, and being activly involved with the memorial services, I can say, undeniably, that we shout for joy in the midst of our sorrow.
The operant word in your statement is suffering. Would you feel the same "joy" at the death of your five year-old child, or a 25 year-old spouse, or both middle-age parents who are not suffering?
Funny thing is, despite attempts by Protestants to sugar-coat the issue, Christian people don't act happy at funerals. Pharisees come to mind.