Just wanted to point out that this is untrue. Most NTS VNs almost always have rushed beginnings with little couple buildup. It is perhaps *the* biggest issue with NTS stories, broadly. Usually it's 10 minutes of setup until the MC tells her he has the fetish, and cut to the next scene where she is jumping on stranger dick, and that's what she does most of the game, with scraps of husband and wife content. VR took the better approach in this sense.
I know these updates come out slow so some people may be forgetting, but the vibe of the story was extremely couple focused until the vacation arc. Lots of communication, constant reassurance and boundary checking, and then culminating in first time sex with a stranger while holding hands with the husband - you couldn't get any more couple focused than that. The story being couple focused isn't a sudden change based on backlash, it's just how the game has been from the beginning. If anything, it's drifted away from that a bit since the business trip, with the couple having had considerably less communication and shows of affection since then.