I agree to a point, but I also feel like the choices the MC makes at our behest should have some sort on impact on who he is. Certainly, that's the idea behind the affinity system (arbitrary as the implementation is). Likewise, I do think it's fair to expect other characters to take
some notice of the MC's actions, even if those actions will not always be interpreted (or intended) in the way we wish they were.
In general, I think we should give the MC wide latitude and always strive to view his actions in the most favorable light possible. Still, I think it's fair to point out inconsistencies when they get blatant enough. I promised to stop ranting about the "no strings attached" issue, so instead I'll use Bella's Episode 5 lewd scene as n example.
I can accept that the MC is, for whatever reason, somewhat obsessed with Bella. Even if he didn't make a move on her in Episode 4, he still really wants to. Fair enough. But I still say it is a mistake not to tie her Episode 5 lewd scene to the one in Episode 4. Even if we grant that the MC can choose not to push in Episode 4 and still want to do so later, the way the scene in the sauna is staged just makes no sense to me. Bella all but begged the MC to stop in episode 3, and he did. Yet now he's presses her again, and this time when she says no he keeps going. I just don't see a way to square that circle, even if I assume the MC really, really wants Bella.
To me, that's the point at which it's fair to start questioning external issues. IMHO, the scene works very well as a followup to Bella's Episode 4 lewd scene; there, the MC does back off when Bella says no, only for Bella to reverse course and continue the scene herself. It's only when you skip that scene that the problems arise. So yes, I could insist it must be an in character action and try to work out why the MC was willing to back off once but not the second time. But I think it's a more convincing argument to say DPC didn't want to restrict Bella's sauna scene to people who stayed with her in Episode 4, and just forgot to take the consequences of that into account when he wrote the scene.
Obviously, exactly where to draw the line always going to be a judgement call. But that's the cost of doing business when debating a work of art. All we can do is try to state our criteria clearly and be as objective as possible when applying them. Well, that and stay polite when all those uncultured swine do the same right back to us.