When you’re just starting out, winning 2s and 3s feels like heaven. It’s so awesome and helpful for building up your roster.
But once you’re entrenched in the 3-4-5* game, it feels strange to win the same rewards as earlier players, because they’re not super helpful. Now certainly since I have a better roster, I can win more 4*s, cp, hp and lts than I did when I first began, but for instance I still basically win the same amount of ISO now as I did over a year ago, whereas now my ISO needs are so much greater.
It would be nice if there was some goal you could accomplish to prove your commitment to the game that could then allow you to receive better rewards (ISO multipliers, etc). Like for example if you can champion all 2s, you get one reward. Champion all 3s, get another reward and so on. Tasks that are very hard to accomplish and would take a lot of time but prove that you are in it to win it.