If common sense was a relevant criteria for quantum mechanics, we'd still be communicating by vacuum tube, and the internet would have a rotary dial addressing mechanism.
Surely we'd at least have vacumn tube switches? :) Of course even a tube has quantum mechanical aspects. In fact one of the early "quantum" effects, the "Edison effect" was first observed in a vacumn tube!
I agree, "Common sense" has little to do with quantum mechanics, or relativity for that matter. For the simple reason that neither (directly!) manifests itself under the conditions of everyday life, where common sense is presumably developed, although I wouldn't know, since I have very little of it myself. Or so my father was fond of telling me when I was younger. :) He may have been right too!