I have only used Club MoBay's departure option and I am not aware of any help getting your bags checked (now that would be nice). Both times I have checked in and then proceded to the MoBay kiosk to purchase my departure pass.
I can't remember if it was on the pass or if I read it on the pamphlet, but it was noted that they can't always call every flight and that the customer should check the flight departure screens.
If any flight is leaving earlier that expected, I would hope that they would be told when the gate calls them. That is rather important information.