as many claim that (especially after Season 2 got active) the loots from all chests are ridiculouse I would suggest to change the mechanics.
Keep chests as they are for enemies, raids and Titans but increase the amount you need to fill them. For that also increase the loots you get. I have not seen any epic token for month from this chests nor any AM highter than 3*.
Now when we have more efforts to fill the chest, those missing loots should be included…