Because people paying him 50k a month while he progressively makes less and less content in an update (we even voted for longer better updates) while taking longer to create said updates ruins a big part of the patreon adult game scene. It's a bad practice that should stop being rewarded - unless devs start seeing a hit to their earnings, they won't change. DC hasn't added a new member to his team since the 25k goal and why should he? People seem OK with 1 new scene in 4 months.
Just because it's patreon shouldn't mean we can't be able to demand more from the biggest adult game developer on Patreon. 1 new scene - and not even adding pregnant sex is mindblowing in a pregnancy focused update - after 4 months is mindblowing.
Well, yes. DC doesn't seem to want to have more members in his team (at the moment at least, as it seems). Simple as that. Just because he gets more money doesn't meant that he has to change the way he works. He asked for 25.000$ and everything above that is indeed optional. And no, we really can't demand more of him. We don't have a contract or anything with him. Just like you and me can't demand from our favourite singer or actor what kind of song or movie he has to do next. That may be hard to accept but that's how it works. Vote with your wallet and things will be fine.
When it comes to the content, it was pretty clear that a "rework" would include actually reworking quite a bit of old content which obviously will not feel new, even though it's polished and takes almost as much time as new content.
But I guess there's no need to discuss this at the moment anyway.
Edit: DC said months ago that there won't be any pregnant sex in the game, just by the way. It's certainly debatable and I don't like it either but maybe he'll change his mind on that in the future.