I think, there was one initial clip, which already was not really funny. Then the footage was used for various audio tracks to mix in and graduably became even less funny. Think, one can only laugh, if one does actually not understand german. (out of context subtitles etc.) It's like this: Making fun of the Nazis used to be not socially acceptable in public. Now it is. Hence, there are more jokes to come about, which are not funny. But also those, who are really nice and sophisticated, displaying the Führer in hilarious situations. That really sucks on the Neo-Nazis :-)

dammit, i should have saved some of these videos for posterity!