L&P has simply built in too many side stories. In combination with the quality claims he has for his renderings, and also his attempts in the animation, it's just not all feasible.
When it comes to good storytelling, often less is more. As I said, I think L&P should focus more on the actual core stories (i.e. especially content that involves Dylan, Ellie and Liam as part of Sophia's family).
Of course, there is a certain necessity, considering that certain developments in the story need to without Sophia knowing, but should still be conveyed to the player. Take, for example, the voyuer scene in which Dylan watches the girls showering after yoga. This is something that at this point can only be shown from Dylan's perspective, and its omission would have greatly reduced the quality of this game.
What really amazes me is how some want to read a change into this game development. From my point of view, if you look at the scenes from the gallery, for example, the focus has always been more on Teens and Incest. From my point of view, the part about Liam could have been expanded, but also this ultimately not as a kind of substitute, but in combination with exactly this setting. Than, It would have made sense to also show some more scenes from Liam's perspective. The point is, however, in both cases, Dylan's and Liam's, that this serves the storytelling and is not, as some here seem to believe, a problem.
I think I can only repeat myself here. Anyone who interprets "A wife and mother" as just a story about Sophia is, I think, making the mistake of overlooking the core of the story. The game was from the very beginning exactly what you seem to reject.
There is no turning away from a original concept. The only thing that has changed is that this game is now in the midgame and goes further than just a quick look at the breasts. As I said, take a look at the distribution of scenes in the gallery, with content on teens and incest. This is the core of this game, from the beginning. The fact that Dylan is now at a party event with Ellie, for example, is a development we've seen over many scenes, starting with the event in the car with Dylan sitting on Sophia's lap with a good look at Ellie's cleavage in the first update of the game. This was not a coincidence, but is part of the main story of this game.
I really hope for your sake that you don't want to do any kink shaming here. If you don't like the setting of this game, that's your thing, but just as well there are many here who like this game (and especially the events surrounding Dylan and Ellie).
If you really believe that "The Godfather" only had one MC, then you either haven't seen the film or didn't understand it. The question is, for example, who should really be called the MC of the story. From my point of view, this is primarily Michael, one of the characters you seem to consider more of a side character. The story, however, revolves around the family and their dynamics. Both can be seen quite well in how much time is spent depicting Michael in Italy. It tells a bit about Michael but even more about the origin of the family, the traditions and the attitude to life. That's what good storytelling is all about. The film would only be half as good if the characters besides Vito Corleone had not been given the space they need (certainly to varying degrees).
Even though I don't want to compare AWAM to The Godfather. The same principle applies to this game. Only when Dylan, Ellie and also Liam are given the necessary space to be able to understand their perspective, does a good picture of Sophia as "a wife and mother" emerge. The whole thing happens here on a less sophisticated level, sure, but changing perspectives is a good device to tell the story and build up background knowledge in both cases.
I can only say that from the beginning, the film was about much more than just Vito Corleone. Similarly, AWAM is not only about Sophia, but about Sophia as "A wife and mother". There's a big difference, even if you still don't realize it.