In the vast majority of cases, you (not you specifically) are the one that is trying to fit games into a specific mold. Tags are just an indication of things you can find in game. Just because there is romance or harem doesn't mean that it can't have other shit. MC can romance one girl but rape some other. He might even rape a girl and then develop a romance after. It's not like this kind of story is inconceivable.
Sure, that won't be enjoyable for people looking for some fairy tale romance, but that game was never meant to be enjoyable for that specific group. We could debate about objectivity in reviews, but the basic notion that a story must be written a certain way if it is tagged with something is the real problem. People need to understand that tags don't determine the story, it's the other way around.
I guess you are talking about that one spaceship game. I am skeptical since most of you guys get ridiculous hyperbolic with your supposed surprise NTR, but I've never played this game. Taking this description at face value, yea I can agree that it could be an example of a sneak attack. This kind of thing is pretty rare, though. What usually happens is that the dev's interpretation of NTR and the anti-NTR people's interpretation differs wildly. When that happens, it means the game is not for you. It doesn't mean the dev is trying to trick you, because again, having a romance/harem tag doesn't mean that it has to be that specific type of safe space harem or fairy tale romance.
Games, books, tv shows, and movie do need to fit in molds more often than not. And not just those things either. This is a consumer industry. Things need to be classified for a reason, so people know what they are getting. You can't call a truck a sports car and not get people raising eyebrows. You don't bill your restaurant as Italian and then serve only cheeseburgers and sushi. I'm less concerned with tags, I'm more concerned with description, overviews, and developer's words and them being honest and forthright, but many aren't. Not all of them outright lie, that is rarer, but many think it is cute or clever to be obtuse, it isn't.
That's why I highlighted this line, it has less to do with tags...
...A review should be about how well a game manages to deliver on what it set out to deliver on...
If a developer says they are making one type of game and then makes another that is an issue. If someone promises a fantasy RPG and then drops in a bunch of NASCAR style racing sections with no warning, then that is an issue. If a game is clear about what it has then I have no problem avoiding ones with content I don't like, but many developers try and hide things they know are controversial or add content they wanted from the start but didn't admit to once they've gotten those early dollar bills by milking fans of other types of content.
I also find it interesting that you said, "I am skeptical since most of you guys get ridiculous hyperbolic with your supposed surprise NTR, but I've never played this game." Because I never claimed membership with a group, nor did I claim surprise NTR. I knew the game had NTR, I've played several games with actual avoidable NTR. I told a story of a lying developer who said the NTR in his game was avoidable. If it had been other content that had been lied about, I would have been equally mad. If he had lied about there being scat, necrophilia, or even something more "vanilla" like pregnancy I would have given it one star because lying I cannot abide. The developer also promised incest content and there wasn't, I also hate when developers pretend their game has content it doesn't. If a developer promises pregnancy content, for example, but all you get is a single line at the end of the game saying, "Character X is now pregnant, thanks for playing." You'd have a right to be upset if the developer said that it would be part of the game from day one and just never had it in there.
It's also funny to me that you knew what I was referring to, so you've likely heard about it before. I assure you, I am not being hyperbolic in my description, in fact I specifically curtailed my description and left out some of the worst aspects of the offenses this game commits in many areas. It was billed as a "safe space harem game" if you turned off the NTR, but you wife still gets knocked up by someone else and another love interest still gets raped, and much more happens that I left out. I didn't put the game in a box, the developer said one thing and delivered another. The story doesn't need to be written a certain way to please anyone, the developer just needs to not lie about what's in the story.
It's interesting as well that you said not wanting to see a love interest raped in a romance game is a "fairy tale romance." But I'll chalk that up to you being hyperbolic.
That's why it's smarter to do an overview accordingly, to ward off players who are not interested in the game's main focus.
Exactly, it won't ruin a game or story for a developer to just be upfront about the content of the game.