I think no one is saying that it is not reality. I tried the game hoping to find something unique that not all games dare to do "porn with mares", but instead I found a game about milking a single mare, you can't even choose its color. For the only "fun" mechanic you have to spend about 20 or 30 minutes filling with milk and milking, the rest you spend every two seconds making the animal shit or pee.
And yes, it is a demo, but a demo must send your clear intentions with the game to the target audience. I have read that their intention is for there to be more animals that try to get you pregnant, they could have put a horse in the demo that is trying to ride you all the time and doesn't let you eat to fill the milk meter, that would give it a more fun point in addition to teaching you its main idea.
The thing is, because you can't even touch the animal, there was a Pokémon game in which the only thing you did was masturbate the different Pokémon and that's it, but even that was more fun.
The game may be interesting, but as someone has said here, you can't expect there to be patrons for a game with such peculiar tastes without even showing your target audience what they are going to find.
I, as a mare fetishist, found something quite meh. I hope he updates it and gives him a little more due, I don't know, at least he lets me get my hands on the mare, I don't know, something other than just shitting and pissing.
And to conclude, negative criticism (which is not the same as insults) is as important, and I would say even more, as positive criticism, if a creator is not able to value both positive and negative criticism to improve his creation, simply dedicate yourself to something else because you will never improve your work. Here I have only given negative points, and there is nothing that can be valued apart from the fact that the graphic section and the movement of the animal are great. If, as you say, this creator gives up because a group of users point out everything that is wrong in his demo and is not able to read, evaluate and improve his game, this demo will never amount to anything more than a Simple eating, shitting and pissing simulator.