It's hard to know how much time has to elapse before all the problems have been teased out though.

Anyone who thought the DC-10 was in the clear after its cargo door problems were fixed was in for a nasty surprise a few years later when an engine fell off of one at O'Hare, but if the industry had written it off after that incident they'd have missed out on 35 years of an otherwise reliable plane.

The thing I see missing is that it’s totally normal and even justified to not want to fly on one of these planes at this point. Regardless of whether there is some period of time on the order of years after which all the bugs will be worked out, in the meantime it makes absolutely no sense to take a gamble flying on one of these, but many, especially those within aviation, insist otherwise.