In part. But another important factor was that movies couldn't be too dark because tvs couldn't reproduce them properly. We all now have devices that can disp

In part. But another important factor was that movies couldn't be too dark because tvs couldn't reproduce them properly. We all now have devices that can display the full SDR and HDR is becoming more common. Filmmakers were forced to shoot and deliver bright images. So now the pendulum has gone to the other side. It's probably going to stabilize at some point.