Yes, they are conditioned to excuse any evil that god commits or allows by claiming that if god has his finger in it, then it must by definition now be good. They throw in the 'mystery' part to try and deflect attention from the otherwise obviously weak argument.
By their logic, if the dog breeder allowed 1000 dogs to drown and could have prevented it then it's all good. But if he was locked up by dog-breeder-rival-satan and the dogs drown, well ... suddenly it's all evil. The outcome is still the same for the dogs of course, nothing has really changed but the excuse as to why it happened.
And lets not forget, they can't claim any interference or inability to intercede because an omnipotent and omniscient god has no limitations.