If this applies to those in the top 100/50/10 as well then it would work although the rate at which you want items to drop is too much. Personally I think for every 1000 items over 15k you should get maybe an extra 20 silver bars. It's not much but it makes a difference especially if you clear the 15k tier easily and get an extra 10 or 15k. 10k over gives an extra 200 silver bars which is a free 450b when sold. Can't really argue with that. If this value was any higher than this it would clearly give the top 100/50/10 too much of a silver bar boost and would make the gap huge between players.
You can't argue with it as such.. And it's only a variable number so it's easily changed if it works out it pays too much / too little, maybe around 25 event items per sb would be better. This would help boost the low to mid tier players very well, if they miss the next tier then atleast they're rewarded for the effort they put in. Some of you might not have played a small account in these events.. Blitzes are a lot harder (you get far less drops than at bigger sizes, amount not frequency) and in ebs you get far less too. I'm not saying I think smaller players should be given the world on a plate, but if it helps boost player enjoyment then that can't be a bad thing.