What would you do?

"the manufacturer forgot to put plastic protectors they normally use to avoid these issues."

Totally agree with Dtc. As the consumer of an expensive high end pair of speakers, you have the right (and you owe it to yourself) to require the manufacturer to make the speakers like new again, whatever it takes. This is the manuf's liability. Unless the dealer is a repair service for the manufacturer, and no matter how simple they say the replacement is, you should not settle for anything but the highest quality solution for your new $50k speakers. It get's my blood boiling a little when I hear of any phile getting trifled with when big money is on the table. I cannot afford such speakers, but I cannot imagine accepting half-stepping by the manufacturer. They need people like you way too much! Hold their feet to the fire.. They need to handle the repair to your satisfaction.

If the manufacturer in fact did not pack the speakers with plastic protectors for the mid drivers, as you say, then they made a mistake. One of the drivers is not perfect and has a dent. How often in these forums do we discuss proper packing? The Manufacturer should not get a pass. If the Manufacturer didn't provide all the packing materials, they need to do whatever is necessary to satisfy the buyer.