This is the game where, if you want to sleep with your little sister, you have to watch a horror movie with her. It's also the game where you can choose to do that every night without either character just saying, "You wanna just sleep together?"
Son has to do a lot of work for mom, particularly the illegal impersonation of a medical professional and the illegal invasion of her email.
I blame Faerin for having a weak blackmail plot and no ability to write a convincing corruption for the fact that the sister's switch just all of the sudden flips.
If anything Man of the house is the game wherein nobody does anything that actually is derserving of the sexual content. Sex happens between characters because reasons.
As to the Aunt and slut best friend, I'd classify them under the relief girl trope, along with the slut milf that just gives it to you. These characters are forward, sure, but that's all they ever are. They are not the main girl, they are not the reason to play the game, just a 1 dimensional character to use until you get to the "real content"
But no, since I first started playing games I've run into a few devs who do a better job of writing forward characters. My Sister My Roommate has several of them. But it was after playing so many games like Dating my Daughter and Big Brother, and Man of the House where I feel like no one really has any depth or character motivation that I decided to become a dev in the first place.
I'd lobby for playing the latest version. Much less grind and a lot of clearing up and streamlining have been done. And I do not agree with you on any of the points. Maybe because I'm firmly in the camp of "Show, don't tell", when it comes to story writing and gaming.
Your little sister is out to get you under her moms nose from the start. "Help me with my homework, please", Watch a movie with me every goddamned night, (until I can bait you to watch a movie that scares me!)", "Oh, sorry, I accidentally kissed you", "Come again and kiss me", "Muuu, rubbing is good", "Come, bathe with me", "Show me your dick, already!", "Why aren't you watching porn with me?".... and so on. Yes it's a pretty typical stairway, but there are way more moments, where she is not only the instigator but an active seductress. She also is the one moving her shy friend plot along. Yeah, she is totally passive and not out to get the MCs dick. I will give you that there are some hints of the usual MC creeps on little sister left in the route, but compared to the amounts of time she is the one pushing him... yeah.
I've heard a lot about the "bad corruption plot". There is no corruption plot. There is no need for corruption. The big sister is telegraphing that she likes him dominating her from the start of the route. It's not perfectly done (an option to confront her at the coffee scene in the start of the game would have given good hints), but she is clearly the one pushing it from a certain moment after ("Hi, I'm Veronica and this is my master"). You also have actual sex (something she keeps away from) only after you present yourself as a capable alpha (beating that guy to shit).
And don't even get me started on the mom. Considering the only thing you do to "impersonate" the doctor is creating a simple e-mail account... no, I can't buy it. Any real attempt to present the MC as the sole instigator of this relationship has to make the mother quite dumb. And this I find less believable than she is on to him and plays along. You sleep with her after a great romantic date. How unrealistic!
The other girls don't have enough plot to comment, but the family lines are anything BUT the MC using his power of dick to seduce women. He rarely does any seducing, to be honest.
There also aren't many incest games with "main girl". So the aunt not being a main girl is a pointless complain in them.
As for the slut best friend... Same thing, tho there are at least two popular exceptions - Acting Lessons (tho I hate how that turned up) and the Babysitter, the last one doing it the smart way, IMO, but that's another topic.
The only lacking thing in games is actually dominant girls. Considering the aim of most games, tho... it's not surprising.
In the end a good story and characters are just a single part of what makes a game good. Important part, but still just a part.