No clue about the reasoning - I don't recall one ever being given. I would like to know too, but I do know for a fact that we can only ever get Classic version 1.0, because it's just a quick php patch job since there's only like 2 features in the game - and that's the only version we'll ever get because Java died and even if they solved the issues with different Java versions, no one has flash clients in the browser anymore to connect.
For that reason Classic is dead to me, we'll never get classic with fort battles or crafting, but still fun to remember how much better and fairer it was, especially around 1.27.