Since its implementation the daily rewards system has remained entirely unchanged. With new things added to the battlepass such as weapon upgrade orders, the cosmetic changing tickets, and the soldier upgrading orders those could be added. You have 3 types of gold order, troop, weapon, vehicle. you have 5 campaigns with 2 factions each, 5 x 2 x 3 = 30 things to get with a gold order per battlepass season. if you got a gold order every single 15 day crate you would come up with 8 in a 4 month period, slightly over 26% of the total things to buy in a battlepass season, which would then lead into another battlepass season. there is NO REASON to have the 5 silver troop, 5 silver weapon, and 300% xp booster in those 15 day crates because even if you get a gold order every 15 day crate you would get barely over a quarter of the battlepass content before a new one began. Not to mention modifying those rates wouldn’t lower incentive to buy the premium battlepass because you can get 3 rewards a day, plenty of extra useful items, you get the gold back so its a self sustaining purchase, and the post battlepass time frame is good for boosting silvers and xp with the repeated days.