You're right, this update especially seems to have gone completely off the rails. The highwater mark of the current version is when Claire shares John with Zoey. Up to that point the game had all the right notes.
The previous update was also dubbed a NTR update, but still had a different feel, probably from the story leading up to it giving you a hint that things might go a different way. Now after this episode, which was pure negativity, I feel the way the previous one ended with much more ambiguity. Maybe Claire was already condescending with John after her scene with Damien, telling him that he was all that mattered and shit. And on this one John is portrayed as a cuck of the kind that doesn't really enjoy being cucked but doesn't have it in him to do anything about it. This is probably the furthest I've gone into true NTR (and mind it, I play with URM and "trueNTR" was false, so I felt kinda reassured) and hated it.
Can't give the game another look until a hypothetical sharing path is written in, and even then, I'm currently failing to see how it can go any better unless John and Claire are both written as completely different characters. Claire, one of the best models ever, ruined. It's the same feeling I get from MISW - she can say whatever, but the undertone is that she manipulates the MC and doesn't give a fuck about him.