Agreed that would make more sense yes in the long term as usually in a relationship, consistancy matters. Also as you say and what I said earlier, it's so easy to clear the RP threshold, what you lose with Sage being a Chick I don't think is enough to make a difference. However, if that continues into the future that may end up being more relevent.
And yes, CoBD is a top quality game indeed.
Thusfar the thresholds have been low, but also what they get you has mostly been low. I would expect the threshold for a major event or decision to be higher, especially if MC is asking someone to do something they would otherwise definitely not want to do.
I made the CoBD reference though to illustrate how games with very few available points make what seem like relatively minor choices much more significant. You have various Victoria content available only if you have 4+ points with her, and there are only like 5 points available, and one of them is in a swing choice (where you get -1 favor for +1 lust), so if you chose wrongly on exactly that one choice, you lose the option. The game is good anyway and most of the characters have enough interaction that that stuff doesn't pose a major issue, but it sort of shows where the holes can be in that kind of a system, and by using CHICK/DIK for the first half or whatever of the game, Being a DIK gets to skip over those problems.