"And flickering lights are very common; to me it is a delight that now DSLRs are able to time exposures to the peak of the flickering light cycle, which leads to more consistent results in such conditions (which are unfortunately very common). I would not want to go into a situation where I have more problems with these lights, banding etc. So I remain uncertain about the topic of the silent shutter."
One of the hands on reviewers mentioned that you can see the banding through the EVF, which makes it easy to adjust the shutter speed and eliminate it. He indicated as a practical matter, banding is an education issue rather than a technical issue.