Cassie Campbell only replaced Kelly Hrudey on Flames broadcasts about a month ago, and she took Louie DeBrusk's place for the first time last Saturday.
The Flames telecasts are regional broadcasts where the presentation is tailored towards one team's viewer base. From the perspective of bias, her opinions of the home team are no different than those of any other regional color commentator.
As others have mentioned in this thread, all Bell and Rogers employees are paid by the same companies that own the Toronto Maple Leafs. To what degree can an employee publicly criticize their employer's other property?