If we wait until we have a crash to identify a safety hazard, then that's a failure of the safety system. With a good safety system in place, we shouldn't need to have people die to validate that there is actually a risk.
What is the "waiting" part. Cell phones been active on planes for years. Should have had some ACTUAL navigational disruption traceable to cell phone emissions on the tens of thousands of completed trips. Let them publish the cases. Let the public decide.