Keys are given at random, it's a feature.I would like to be able to break chests. If I cannot open them, I would at least like some shards from them instead of simply discarding. After all, they are battleground rewards.
Declined. To get some valuable Resources from Chests, you need a key. It won't be changed.
The frequency of keys dropping and the levels of keys dropping need to be examined. If I do 120 BGs in a week, I usually only get lvl.1-2 chest keys, and I've never gotten a rare level 4 key for a chest. It seems like the frequency could be tweeked to award hogher leveled keys and chests at a better rate. Most people don't want to spend 15-30k sapphires for 1 key.