We assume and HOPE that is

Yeh I like the drop rate of Rare girl in IDWZ. But thats allso thanks to the fact that its soo easy to get tickets and you can get SSR even from the very basic most gacha in there.
If our normal Gacha included 5* as well as just 4* and if the game itself would distribute more "random tickets" for comleting tasks (heck even if you got it as a daily Item at the end of full Login card rather than that one single shitty Flower Gem).
Nutaku needs to be less stingy with their other games. You can see in IDWZ how much attention and love that game is getting.

Discounts (huge ones) at gacha pulls, lots of items to reward the players with, and chance of good drops even in basic gacha.
This is the vitality that most of the other games lack. Just imagine how much more fun it would be if similar system was implemented into FKG.