While I don't subscribe to "defending devs always" principle, the "onhold" could be a genuine stance here as well.
Imagine you losing your job- suddenly you are worried about a lot of expenses in your life. Could be as simple as everyday expenses, all the way to major medical or debt repayments. Even if a game side project is making you 400 dollars, it's unreliable income at best. Especially with an NTR game where even though you get a lot of backers, you loose a lot of backers as well if an update isn't well received.
But, lets presume that doesn't happen. Are you telling me, that if you were the dev, you'd be in a creatively healthy mind to develop a game properly while unemployed? Every waking moment would be filled with worry of some kind. If you continue in this state, good chance the game's quality will only degrade further.
I mean of-course it all could be a ploy to just exit out of a project slowly cause the dev is sick or bored of it. Or perhaps they need a break and this is a good way to get some of-time that he/she thinks can be justified as a long gap between next update. Who knows.
Just... hold your pitchforks for a bit. It's too early to judge as to what is going on.