I believe that it'll cause damage to the significance of the donations since everyone will be using the Activity Points' rewards (donation coins & recycling lucky boxes and cosmetic boxes) as the only source for spending their coins for this kind of gambling feature. Besides, it might also decrease the number of donations per month. We can't ignore the fact that nowadays, there are so many ways to gain donation coins, such as competing in Weekly Comps in various categories, rebirthing a level 99 character, Clan Wars, Activity Points' rewards and recycling lucky boxes and cosmetic boxes (as mentioned above), streaming on Twitch, converting event points to coins and winning special events (VIP, etc..).
