Just another poor quality article from cointelegraph. I suppose that's one way to do your journalism - post any old nonsense and wait for people to correct you with the actual facts. Cunningham's Law in action.

Burger King are not accepting bitcoin.

Takeaway.com is a fast food delivery company, similar to Uber Eats. They accept bitcoin via Bitpay, and have done for years. They also happen to do home deliveries for Burger King in Germany. Therefore, if you order Burger King for home delivery online in Germany, you can pay with bitcoin via takeaway.com via Bitpay. Bitcoin won't be accepted in Burger King restaurants because obviously you do not place orders in physical restaurants via takeaway.com