Perhaps the problem is an elementary creative cul-de-sac? The plot - for a thousand, and the result, no matter how you look at it - for a penny? I'm sure the developers of Summertime Saga hit the same dead end when they got carried away with their cowgirls, and the creators of Love and Sex on Second Base simply missed the point when the game had to be finished (as a result, there are so many female characters that it's a pain in the ass to sort through the crowd).
It seems to me that the plot of Amnesia was well thought out, but the creators just don't know how to untie the main plot knot. The sidelines are turning out pretty good so far, but I'm personally more interested in what happened to MC. And here, if there are movements, the speed of plot development is comparable to the speed of a snail. At the same time I like the game, I don't intend to quit it, I'm afraid, as if the developers didn't abandon it.