The broken turbine is on the exhaust side. The supercharger should not be damaged unless a foreign object was sucked into the engine and then through the Supercharger, and then the cylinders and then the exhaust then the turbo.

My mechanic actually was mentioning that since the foreign object should have generated from the piston area through the exhaust, that there is a potential of additional material getting discharged and potentially could damage the block itself (because of a cylinder that may get stuck or for other reasons).

I appreciate your response, I think at this point we're going to open the hatch covers and take a look inside. I believe the big question would be what to do if I find that one of the rings is broken, given that the engine doesn't have any other symptoms.