There are always snickers during the "Judge's Johanna" I also think that it is more appropriate there than at the end, the intensity has been building, and I would be angry if someone broke it by laughing.
I also think the "Judge's Johanna" is a great part of the show. It establishes the character in a much more concrete way, you can tell that he too is conflicted, yet his choice is to engage his evil urges actively. It is haunting and painful and frightening. Especially with the orchestrations having Johanna strike the cello.
I stand corrected, you are as vapid as they say.