While I wasn't specifically aware of that I'm not surprised.Of course there are a number of words that we Yanks spell,and pronounce,differently than do subjects of the Queen...and I've just learned of the existence of another one.
But I absolutely draw the line at haggis! ;-)
No haggis for me, either. The rule I remember is that Irish & Americans make whiskey, Scots & Canadians make whisky. The colloquial term here is “rye” for the main ingredient used to make Canadian whisky.
A lot of what is sold as haggis today is not made up of the old, disgusting ingredients. So I’ve been told.