I don't know if this is how you wanted people to use the Three of Coins, but I don't think so.
-
People, we all know it is, bungie let's those things to slip by so that players find it and then make them mad by patching it saying they "didn't intend" to let that happen or that "we were never supposed to keep killing ourselves over and over just for one engram" best example, the loot cave. My guess for the patch is that they're going to put a cool down of at least three mins like a synthesis