I saw that in my curling research tonight! But it is still just shuffleboard on ice. Like anyone can be decent at bowling but a 300 game is insanely hard to accomplish. Its not a slight on Canada or Minnesota... its just sort of humorous to watch.
They give it a freezing rain consistency on the top to reduce friction, otherwise the stone would stop almost immediately because of how insanely flat the sheet of ice they initially lay down is.