Why would the English make the Scots stop drinking heather ale? Was it just to be mean, or were they trying to stamp out any lingering remnants of Pictish matriarchal-Druidic-Atlantean resistance to their oppressive rule? Nobody knows, but one thing we do know is that the English wanted Scots brewers to have to buy ingredients from England, instead of just using heather, which was growing all over the place for free.
The moral of the story is this: the Picts were either a group of tribes speaking a variant of P-Celtic and brewing ale from heather which they did not call “Fraoch,” or they were a mysterious Atlantean Druidic matriarchy. The English either banned heather ale in order to make a few extra bucks, or they did it as part of a fiendish anti-Pictish plot. Have a “Fraoch” and decide for yourself. It's pretty good.