Yes, let's definitely look at the CAA report.
Should the passenger ban continue? For sure. But read the document - read the nature of the test, the proximity to the avionics - if the text is too hard, look at the photo in Appendix 8
What they were simulating was the active use of mobiles in the cockpit, not Mrs Jones in row 10 who's forgotten to turn her phone off. The idea that this is just a passenger issue isn't true, and it isn't the CAA's conclusion either. (See section 7 'Recommendations')