not a bit surprised when the guy in the video set it at it's lowest setting (LO 60F/15C) where the a/c would be working at it's hardest in order to get the temperature down so quickly and you can tell that from how quicklly it got the 107F temperature down to 57F), he should do the test at with it set at a more reasonable temperature and see if it does the same thing.
So far I've found the a/c to work great in temperature in the 30-40C range. Sounds normal to me.