I disagree with this. Most of the time when I'm playing a game like this that involves multiple heroines, there's always one heroine I like more than the rest and I want her to get the most screen time but since there are multiple heroines, the screen time is divided up onto the other characters I do not care about. I prefer 1 single heroine get focused and have a story full of depth and good pacing about how she 'fell'. I'm only interested to see the gradual corruption of the heroine and the deconstruction of the person she was at the beginning of the game.
Though, I'm probably biased because I don't care/put much attention to the protagonist getting cucked, or the alpha male that steals the heroine as much I do the heroine herself, I do understand how it's a power trip being in the alpha male's shoes and seeing him steal multiple girls from 'white knights'.
