Compared to some text adventures its way below average, just to name a few high end ones: BDCC or broken dreams correctional center, it started small now its huge and has a lot of repayable elements. Kobold adventures was another decent one. Tennis ace, lyre, soul Creek are also good though are visual novels as opposed to text adventures. Simply saying that there's a small market for something doesn't mean you need to do half a job, I understand wanting to make a quick buck here and there, in which case I would pay closer to 15 - 20 dollars for a game as well polished as BDCC. I don't specifically come for smut though, I just like reading things around the furry fandom.
Don't get me wrong 10k words is a good short story, usually good to gain traction and such, but not usually something worth 3$, and a fast forward button is literally 2 lines of code in Java, 3 in C#. So usually not hard. Definitely would make the game seem more polished.
Positive notes, you are correct in that most text adventures stop getting updated, but not because of financial strain normally, usually it's either they get bored or because something happens in the background, writing something over 50k words in a single sitting can get boring if done for long enough. I got in touch with a few authors of some cancelled text adventures, orrias was one, when he was writing the story he was making around $1,100 a month through patreon, and about $400 from other souces. eventually he announced he was stopping until further notice because shit happened behind the scenes and he never found the will to pick the project up again, he is one of the examples of what it means to do everything right a still get fucked over. Mind you he has a link to his discord in the biography of the game. Honestly I wish you the best and please try to do better next time, just don't try to mass produce 10-20k smut stories then sell them for more then they're worth, I have made actual games that are free, and learning C#, Java and C++ is harder then scraping together a short story. I now currently work at naughty dog studios, but release mini free games from time to time for fun.
If you are treating this as a business then people will notice that it wasn't made with passion at some point, if you think making a story is a lot of effort then you are only setting yourself up for failure and burn out.
That being said, I'm not trying to attack you, or diminish your achievements, but do try to aim higher or add improvements.
Man, I just realised how long it's been since my first text adventure game. I made that in 2015, damn! Though it was only 7k words.