On 7 of my last 8 European trips in the past 3 weeks (AMS, ARN and GVA on a mix of A319/20/21) it was a manual demo.
I had assumed I was either on a plane without screens or they were not working, but the screens were duly lowered after takeoff for the moving map.
So today I asked the purser and she said they have been told they can do, at their discretion, manual demos ‘due to customer feedback’. So clearly someone at HQ reads this forum

I cannot believe pax waste time writing to BA to complain about a safety video. Or do they ?