As a DL Medallion, I'm not guaranteed EC seats on those routes. Most of my travel is booked within the sub-18-hours to scheduled departure window, and I have a feeling this is going to mean I get few if any free wraps on these flights because the chances of ending up in EC are far lower for me than for other DL elites. Is DL even still giving out those coupons at check-in that it used to for free drinks and snacks?

Charging $9+ for something that even BA offers everyone for free (despite the higher cost of food catering in the UK) on even short-haul economy class flights is a new definition of "free".