You both overestimate how much grind people are open to in these games and underestimate how stubborn people can be about getting their desired results.
I am one of those who will just grind out repeatable events until I achieve the result I want. Give me the tools for my outcome, and I won't care about intended timeframe.
For xp you're not supposed to be hitting max level since it's designed for the whole length of the game. Only ch1 is out. Hitting level 6 by the end of Summer is fine.
For money, the grind is pretty light considering the amount of things that are in the game to buy. Also you get money boosts with level. If it's an issue it's pretty minor in the grand scheme and not terribly offensive.
I said at length the details of love/trust with someone else, but I'm not that committed to stating exact balance, outside of the obvious that trust has fewer opportunities to increase than love, until more content is in the game and we can see how they work into new events.
Edit: If people want very little to no grind, well the game isn't really designed with that in mind at the moment. Who knows, maybe something like a "story mode" setting will come in the distant future or custom grind speed settings. As long as the game doesn't get too much grindier than it is right now, I'll be happy no matter what level the grind is at.