Disciplinary Action: Never do it again on camera.
Why? Violation of some EPA rule?
The problem isn't that they burned the bodies, the problem is that they talked trash about it. I see the PSYOP value of doing this, i.e. get the enemy to come out and fight but this was ill advised. By spitting in the face of Islam you not only make the enemy mad you also alienate your muslim allies. Hence the military was forced to make an investigation to appease our allies.
Bottom line is that you have to weigh out the advantages of your actions versus the consequences they will incur.
I'm just glad the soldiers involved didn't get smoked and that some savvy JAG figured out a way to write it off as field sanitation.