I can't believe that players really suggested to remove crystals boxes, anyway I absolutely don't like this update and I'm writing to tell you my Idea to improve the crystals boxes system. It is quite difficult to explain, so I will try to make an example; please read it carefully.
Crystals boxes interfere with the gameplay because they fall too often you said, isn't it the matter? Well, let's fix a time, for example 15 secs (developers will decide). When a battle starts, for the first 15 secs crystals boxes don't drop; let's say that after 15 secs the battle fund is 32: so there will fall 3 crystals boxes (10 crystals in each one) and the remaining 2 crystals will be counted in the next 15 secs battle fund; after 15 more secs (so after the first 30 secs of battle) the battle fund will be, let's say, 77: there will fall 4 crystals boxes (77 - 30 already fallen; obviously there will be 7 crystals as rest). These will help solving the problem with "crystals hunters" (players who think only to catch crystals boxes and don't care of the fight), because for 15 secs they won't have anything to catch ;). What's more, if the crystals boxes drop all together in different places, it is difficult that a single player can pick all the boxes up. But only this can not solve the problem. Let's say that the battle fund, in a high ranked battle, after 15 secs is 213: if the map is pretty small (like sandbox, station, zone,...) 21 boxes are too many. I suggest to fix a limit number of crystals boxes which can drop all at the same time for each map; so, if this limit for the map "X" is, for example, 15, there will fall 6 boxes with 20 crystal in each one and 9 boxes with 10 crystals in each one (in random zones, it is pretty obvious) and there will be 3 crystals as rest. That's all! :)
Please consider this system, because it is very balanced: there is all the stuff which was added in the game with the recent updates: drop zones and crystals boxes with different values (possibly not under 10 crystals); this system also takes into account "crystals hunters" and, if you delete the crystals drop zones, as I suggest, campers too! Please consider this idea, I think it is the best chance to improve the crystals boxes system.
P.S. I did not write about gold boxes, because I like the current system in which gold boxes fall right after the notification.
OK this is really the end! :D