Absolutely - I learned its origin from a post on here. Where this argument falls down, however, is that the racist nature of the word was already pointed out to Falkirk fans last year:
The guy who initially used it yesterday, @NavyBlueArmy1876, didn't like it being called out back then either so he was clearly aware that it's racist. It's also worth pointing out that hapless moderator @Andy Dufresne banned the person above who called it out and liked a subsequent post containing the slur.