I'd like to point out that the first of the two was dropped because it was a) not filled as much as the other, and b) to enable creation of the "ugc map of the week" server, which also served as a second competitive server for our teams to play matches on, which became imperative once we had a second team.
As for the last MVM server being removed... it was announced well over a month ago now that we would be migrating servers and slimming down our tf2 operations at the same time after valve gave communities a giant middle finger during the halloween event.
You're not the only person to have lost a favourite server, and the decision we made as to which servers to cut was not an easy one. In the end we had to look at the most popular ones that would also give us our best ratio of players to server hardware, and MvM simply doesn't make that cut; it takes the resources of a 32 player server while only offering six slots for players. It's fine if we have resources to spare or that are unused, but not ideal for the grand scheme of things.
HOWEVER. You may have noticed the "temporary servers" feature appear in the server list recently, and this is something that might be of interest to you in relation to this. We're currently putting it through its paces with the competitive teams, but in the near future (next month or two) I hope to be able to launch our much-discussed "rent-a-server" option where it is possible to spend a couple dollars and get a tf2 server all to yourself for 24 hours. That way, if you fancy a night of 2fort, MvM, saxton hale, or whatever, it can be easily arranged, but without the long-term commitment of resources. We will be keeping an eye on that as well and if something proves to be particularly popular, we will certainly consider making it a permanent addition.