The whole practice of viewing bodies is interesting. My friend is Jewish, and she says that she has never seen a dead body, because they don't have viewings in Judaism (?) (or at least in her synagogue anyway). So - to her - a dead body in a casket is as harrowing and disconcerning as a dead body in a recliner.
And - you have to give the family credit for portraying the guy the way he wanted to be portrayed. When you think about it, a funeral should be about celebrating the individual. Ya - this is a little on the macabre side, but, it's actually kind of touching that the family wanted to humanize him this way.