I don't agree with that. The onus should be on the creator to be sensitive to the audience's cultural values if they intend to release a product in that specific country, not the other way around. If the game stays in Japan, yes, fine. However, if a Japanese developer wants to release their product in the west then they should be sensitive to western views and attitudes.
If they don't want to change or adapt to that, perhaps not wanting to compromise in their creative vision or wanting to provide an authentic cultural experience then they absolutely have the right to do so. They cannot then expect the audience to bend over backwards to accept clashes of culture and have to be prepared to accept challenges from that audience in relation to characters like Cindy and Quiet.