I've been to a couple of "going home" services, where it was more like a church service, and it was 100% appropriate. However, that isn't always appropriate, and there ARE times when it's simply manipulating the grieving family in an emotional time. I've NEVER seen it lead to anyone getting saved.
When most of the grieving family are Christians (especially the immediate family), or at least have a history in the church, a service that is focused on the joy of seeing Jesus, and knowing their loved one is in His presence can be very comforting indeed.
One of the "going home" services I went to included people (yes, grieving family members) dancing the aisles and having an otherwise rockin' church service.
Since Dan apparently knows the man who died, and probably is familiar with his family and their culture, let's not jump to the conclusion that he handled anything badly.
Anyone watch the video of Billy Cole's funeral?

Not really all that sad, if you ask me. There is a LOT of room for rejoicing at the funeral of a Christian, and it doesn't hurt secular people to be exposed to that concept. Further, there is a lot of benefit to the Christian to be led in worshiping the Lord in a time of sorrow.
I wonder what Paul would have said? Do you think he would have shared the gospel message at a funeral?
Psalm 116:15 "Precious in the sight of the LORD is the death of his saints."