believe me I know how to set up viral videos on the tube, in this open forum I will not disclose all I know but I will say a few things.
First, this video is way too long, it has to be 90 seconds in duration, YouTube will sink anything on this subject over say 120 seconds.
Second, YouTube hates reading lessons.
Third, the bulk of the viral audience is derived from the US, I have found that Americans love anything American, Australian stuff is well very alien indeed.
Forth, set up your tags in the video better, remove any reference to Oz.
If you would like more precise info on how to pull off a viral video you will have to contact me via my tube page, as I see your not a partner the really cool thing partners can do is set up a custom thumb to a video, so let's say on your video you could have the classic red ring around the UFO, doing this alone will basically haul in the views.
I believe a well set up thumb can account for 80% of the views.
Just a personal note here, I believe being a little different is also important, the really good viral videos have a little story attached (without a reading lesson), and haul the viewer in.
Take it or leave it, I have said way too much in this open forum as it is.