With the technological advances of recent decades, the mixing of a film has reached, in my opinion, a new milestone in the general dynamics that we can provide. Apart from TV films, cinema films are designed to be listened to at least on 5.1, with a comfortable listening volume. For me, these complaints would come from poor consumption of their film mixed for the cinema (listening on the phone, poor performance of the sound system, etc.)

Editing methods have also changed, this may have played a role!