Jein (Yes and no) I think. While new Miru is more loyal in bed than old Miru (old Miru was a full-blown slut in bed, but otherwise rather loyal if eccentric), she is not as adverse to sharing than it seems at first look. Yes, she was not really happy with the sharing discussion, but during it later on admits that it is not bad to trhink about it (since it is implied that she has a very high sex drive like old Miru and she does not want to cheat on the MC)Can I go ahead and assume the NTR in this reworked game refers to the sharing content?.. Im only saying this because compared to the old Miru the new one seems to not be the type to cheat on MC, she wasn't all that happy when MC mentioned the whole sharing thing and she just seems more dedicated and loyal while the old Miru clearly wanted to fuck Dylan and maybe her ex and this was even after I turned off the NTR.. Perfehaps it's too soon for me to judge the new Miru like that but she seems waaay more likable than the original Miru she's also waaaaaaaaay more attractive.
New Miru looks even better than old Miru, but I hope her new incarnation retains a lot of her old eccentricity. And considering their "playing tag" at home, it seems like it is the case.