I suppose it comes down to how you define romance in this context. If you define it as getting to have sex with a character then sure, it's a lie. If you define it as having a romantic relationship with a character then I don't think it's a lie, since I believe you only sort of start the potential for a relationship at that point. In most games romance is in the form of courtship, really. The process leading up to a relationship and that's basically the end, nothing more happens. BG3 is actually trying to do something deeper here, which I applaud. Letting you progress quite far into the courtship by the end of act 1 and leaving a lot of room to continue to grow and shape the relationship.
