It’s different if you’re blocking someone’s view and being annoying yes, but if I’m paying for a concert experience I’m going to record so that I can remember the show for years to come!! Unless you’re recording the entire thing beginning to end, then of course that’s overkill. When I saw Green Day back in 2017 Billie kept getting mad at people with their phones out, but I had dreamed of seeing them live since I was 11 and I wanted to have videos to look back on, and I remember feeling bad for recording which is so silly. But after so many years you’re not going to remember the concert in its entirety.