What - no crash due to EMF interference from the camera? No suprise really as I asked a colleague who's an EMF expert about this issue a few years ago and he confirmed the regulations are quite OTT. That's aside from the fact that policies/procedures/requirements vary considerably from airline to airline.
That being said, I can appreciate it's better to have a blanket rule for all equipment to cater for the potential for a random passenger having some cranky piece of kit that could have some effect.