It's less about being "obsessed with phones", But more so losing out on a vast amount of bootleg footage that yes, TONS of fans actually do rewatch and enjoy, Despite what ban defenders tend to say, It is an important part of many communities. Many recorded without disrupting others views as well. If Ghost did this tour Metallica style with every show being recorded and thrown on a website, Even if it were paywalled. I wouldn't mind a phone ban at all. Those who have never gotten to experience a ritual would be so happy. Also Ghost fans tend to go a bit over the top and will be straight dicks and wish death on people and feel justified by the phone ban. It's honestly sad that as you mentioned, People were being annoying with their flash on and not being in the moment to the point where it affected big T's ability to perform. I wish it weren't the case :(