My understanding of the situation is that the enblem is a big deal, because the International Red Cross (and its enblems) is written into various treaties, and any change to the enblems used by Red Cross-affiliated organizations is essentially like re-writing these treaties. So, of course it's political. As part of the "deal", the Palestinian Red Cross was also admitted, which took a special exemption since the Palestinian Territories don't quite exist as a full-fledged independant state right now.