Well, it's a role-playing game. It sounds logical for me to include sex scenes as consequences of a person's decisions. I can agree that these scenes are hard to get right because of the animations (especially facial animations), which can look cringy in comparison with animations in normal dialogs. But cmon, why do people think that it requires a lot of resources? There are probably not a lot of them in comparison with all other animations. And having body customization in a role-playing game sounds nice. The problem with Cyberpunk 2077 was that developers used maturity as one of the selling points, which was lackluster in the end. I do not think not having customization and scenes in Cyberpunk would make any difference.
