I am relatively new to this game, but I was thinking it would be nice to have a pet or companion that would pick up gold or other items set in your loot filter. It could be a base feature of the game and later be an option for micro transactions with different skins or effects. It could add some long term revenue to the game outside of the individual sales of the game.
I believe the reasoning is that this being a game about hunting for loot, which would have most of the point of it defeated if you didn’t have to make any decisions about what loot you actually picked up.
Personally, I would speculate that an additional reason is that this is not a Netease mobile game.