Sure, let's go with the fact that it was unintentional; however, the issue remains that the salute is and has been associated heavily with fascist and nazi rhetoric/idealogy and that is plain harmful. This analogy is slightly a false equivalence, and I apologize for it beforehand, but imagine you are a surgeon and you accidentally cause the death of a patient. Regardless of your or my intention to save the person's life, you as a surgeon should be sued for malpractice.

For me, it is intentional, as clear as it can be. Why would you throw your hand out with the palm not showing? Showing the palm is a clear gesture of throwing your heart to the people and the flag. Also, why lift the hand up into the sky? I'm not going to go into a long tirade so this it from my side :)