I have been wondering this myself, actually. This vid makes some great points! Hopefully it reminds people of how awesome "Er ist wieder da" could be as parody material.
Parody is good, but some things are still to improve, for example, the subtitles are on the screen, so we can't see the characters well. Also, the dialogs are a bit too long for what they say, like if one says "My Fuhrer" or "Steiner" it must stay a name.