How many S2's have they shipped vs the number of damaged miners recieved? Do you have the numbers, do we even know the scope of the number of shipped S2's? I imagine its a pretty big number.
From what I remember seeing on availability numbers on the Bitmain site, it has been between 1200 and 3500 per batch, so between 5000 and 12000 total units sent out to date, I would say. It's a lot, I guess, depending on who you ask, but not really. The S2 probably takes a good amount of time longer than the S1 to make.