Regardless of whether or not these electronic items are a safety hazard or not how would it look to the media and the travelling public if QF went after the kid who took the video and sound footage????
It would look like they had something to hide.
Back to important issues.
To me this is one of three possibilities.
1:A maintenance issue
2:A manufacturing issue
3:A design issue.
In any case I think it shows that there are better investment opportunities than the aviation industry.