Welcome to FT. Be glad you received a response that even remotely addressed your complaint. Usually they are canned responses that have been cut and pasted. The recent response I received had zero to do with my complaint. The response had multiple errors and after reading it I could only conclude it was written for another PAX. The followup survey resulted in a bunch zeros.
However, while I did not and typically do not ask for compensation I am to receive bunch of miles for my "disappointment." They have yet to be delivered. I have decided that if the miles are not delivered I am going to make a phone call as sometime years I had reasonable luck in taking to someone at Delta's corporate office about some issues.
My advise would be to write off the response. FWIW, when I do want compensation I ask for specific amount in Delta dollars.