Having watched this..
I realise that it isn't so much under rated as it has a cult following. This movie has been here little over a year and has had roughly 1,800 views... compare that to XIAO XIAO which has well over 10,000 views and has been here only a few months. The main difference between the two I can see is that for the most part, the people who vote on The Mourner love it, whilst there is a vast different array of feelings towards XIAO XIAO. Anyways, great work!