Other than both have had a drop off in passengers i really dont think you can compare Plymouth City airport to MME.
For a start who in their right mind buys an airport and then creates an airline to serve that airport (being largely the sole customer) with the long term sole aim of closing down the airport - why not just buy the airport, not start an airline, and say well no one is interested in Plymouth lets close it down - it would have been much cheaper.
It didnt happen at Sheffield City nor at Coventry (buy airport, airport owners set up an airline)...and yes am aware its now sort of happening at Southend.
The idea was probably good in theory - large City, buy the airport and try to capitalize on the fact their is no competiton but it hasnt worked - plus the fact when they sold the airline new owners Eastern canned some routes.
They are operating with less than 100 passengers a day ive read, we arent quite that far down the line and reliant on one sole airline for all flights.
Therefore i am not seeing the comparison with Plymouth that people should assume MME will follow suit and be next to close given the situations are different (owners, passengers, past history, airlines, catchment area)
On a side note - whats the story with Eastern using ASW and NWI based aircraft in the last couple of days - tech J41 planes or are they being used on charters this week?