The NHL world has slowly been shying away from drafting goaltenders early. A goalie's value over their career, for the most part, does not match the value of the pick they were selected with. With teams becoming more and more value conscious, they would rather try their luck (Henrik Lundqvist was a sixth rounder!) in later rounds than potentially slip up early on.
That doesn't mean there are no good goalies. Carter Hart has earned consistent praise from scouts and the CHL Goaltender of the Year award despite being relatively undersized for a goalie (6'1", 165 pounds). He has enormous talent, but the Flames are most likely not looking at a goaltender for this draft.