Probably most fans of DMD wish that, too. However, the developers need a revenue stream to continue producing anything. Patreon removed that revenue stream for DMD. So, they had to come up with another means of making money. They decided to create another game on Patreon, to keep the cash flowing in, and continue to develop DMD outside of Patreon and its restrictions. Once the game was banned from Patreon, there were not many (if any) other options.
By the way, I recommend Melody. It's a good game, even if it doesn't contain any incest.

Lots of pretty ladies, with an interesting story line.