Well, if the news is real, then I think the popularity of BTC in Canada will increase a lot. However, I am still skeptical about the authenticity of the news, if KFC officials have not reported it.
It was posted through KFC Canada's official twitter account, which is linked in the article, so the authenticity of the news is out of the question. You can check the verified tag yourself.
As for the impact it has, I honestly have no idea. I mean, it spreads awareness and everything, which is definitely good in the long run, but I'm not paying for a freaking bucket with Bitcoin. I might end up paying higher fees than the bucket itself lmao. It's awesome to see companies jumping on the bandwagon though!