I would try to save her. When's the last time your plants had water? I've heard horrible things about that moisture control soil. Maybe it sucked all the water right outta the soil and right outta the plant.

Or they might be fert burned from that horrible soil. Even the regular MG potting soil has ferts in it and you really want to stop fertilizing your plant for the last several weeks of flowering otherwise your buds taste like fertilizer, so I wouldn't repot into a fresh pre-fertilized soil, that's pretty much the same as adding more fertilizer to what you already have.

Take a leaf off and taste it. Does it taste very bitter with like a chemical burn sort of aftertaste that's really unpleasant? If so I would definitely not chop it yet or else all your smoke is gonna taste the same way. You need to repot it again into soil that doesn't have fertilizer or moisture control in it.