First step is to see that there is a "mistake", second to think of a solution, third to ask for advise and fourth to consider all the advise and make a decision. Whatever you do you will make a "mistake" again because you have to take one road which will leave something left on the other road. In this case its up to us the players to decide if we still have fun with what you decided or not. The population of MD will stay like it is now or shrink, in no way it will grow ... you know why. As long as you´re considering this you should be fine.
The only thing you should not do is to continue to put people, who supported the game by playing it (there is no correct or wrong isn´t it?) into boxes and by this try to justify your decision. I never forgot that this is not a democratic system here, so I was not surprised that you decided things. I was surprised by the way you did it.
And again from my point of view you don´t have to feel sorry for those who don´t like it, just expect that they might react in a way you don´t like and they might not be sorry.
I wish you all the success with the plans and decisions you will make for MD for a brighter future. MD was a great game it might become one again.