The teams above weren't in the 2010 World Cup videogame. All the 2014 banners for teams were based on the 2010 IDs. So, Mauritania & Mauritius have their 2014 banners even though they weren't in the 2014 videogame at all & 2014 FWQ participants, but not in 2010 World Cup, don't have banners:
CAR, Laos, Philippines, PNG, STP.
Why? Well ask EA that one! :P
Bhutan, Brunei & Guam didn't enter 2010 nor 2014 FWCQ, so they have no EA assets except for their IDs. Same reason for South Sudan (didn't exist untill July 2011 when World Cup 2014 Qualifiers already started).