We can't call the hashpower wasted.
Mining is the process of trying possible hashes that miner software that generates repeatedly that targets a specific "hash" and the process takes numerous amount tries. Within the nature of process, we have be lucky enough to find the correct hash that the coin network targets at the moment - where the luck comes in factor. In the case that the hashes we produce doesn't fit the network's current target, it basically means that we have to keep repeating the process and there is no way other then "estimating" when we can find a block. But as the luck is already a factor, estimates are never good enough for exact guesses.
So basically for the last few days, we were unlucky enough to find a hash value that fitted the networks requirements at the moment which eventually caused pool not being able to find a block.The process can act as the reverse too where the pool can find blocks much faster then the estimates (check the percentages here - http://doge.coinium....&action=blocks)
So basically, I'm frequently checking the logs, wallet software and pool software and from what I've seen from our pool wallet - we didn't really find a block for the last few days -- which we'll eventually find one though.