Well the only “legal” reason, issue, I can see is because Electronic Arts made it an issue by refusing to pay for “brand” licensing in their games. Once again and as always controversy sells.
A good start
Until EA made it an issue it really was not a problem as to using branding as in most cases it was an issue limited to the development of the game that could easily be solved by paying for the licensing and if reasonable is just another cost as to games development in general.
So
Until the issue is resolved in the courts one is safe, getting away with it…for now.