After the first non-English words were sung in that commercial, I knew exactly WTF was up and rolled my eyes (because I'm a sassy teenager). Allow me to share:
1. 96% of people speak English in the US. They knew it would be insulting to many that have learned English and learned some of the patriotic songs (such as my patriotic Mexican in-laws...lol). They also knew it would insult those that think people should come to the US and speak what other 96% speak.
2. Scumbag Coca-Cola: pandering to the people via the Asch Paradigm. Lemme explain why: people will think it is socially unnacceptable to get irritated or even upset over the use of multiple languages in a patriotic song. Therefore, the proper group conformity response is to be accepting of it and be angry at others who are not accepting of it. That's the expected normative behavior.
3. Scumbag Coca-Cola: using a patriotic themed commercial to tug at the heart-strings to sell some product. It is one of the lowest and easiest things to do to try and advertise. Unoriginal. Garbage.
Congratulations to those that were outraged over the multi-language portrayal of a song that would clearly make you upset: you're doing exactly what was expected of you.
Congratulations to all those outraged over the outrage: you're doing exactly what you were expected to do to conform to the group.
Now allow me to revel in my smug sense of superiority because I don't give a flying ****.