For the umpteenth time, there is no evidence the crew flew through a Cb. In fact, based on the last BEA report, the crew knew very well what was coming,weather-wise as they turned to avoid and briefed the cabin crew.
Sigh! Let's not be anal or pedantic. Supercooled water, icing at over 35000 feet yadda yadda yadda. If they were not in a CB, over a CB then it was somewhere close to a CB where the effects of a CB were pretty evident.
I concur with woody; I have seen 13000 hour veterans with only 600 hours on type happily flying in vicinity of odd shaped hooked weather radar returns simply because they had plotted a course in the clear a few miles downwind of such a return. Oh, those wonders who were produced fast track through jade cargo, air china cargo, jal express, polar etc then go around blaming everything else for the bone rattling shake they get.