Interesting effort - hard to judge by only five minutes, which is devoted mainly to setting it up.
Looks as if this was done for the UK fans who get Torchwood a week after the USAians, for once.
The animation is basically what's called "motion comics", in which static comics are manipulated to impart motion - which is even less-realistic looking than the cheapest Saturday morning half-hour toy ads disguised as entertainment for kids.
Judging by the comments on YouTube, some people - mostly the rabid fanboy (girl) types - haven't figured out that the action is taking place in two different times as well as two different places: the Cardiff segments are set in 2007, the L.A. segments are set in present time, after Miracle Day.