Memes

In my experience, this is intentional. You're watching a thing with full dynamic range sound. Honestly, the intention is for you to have a decent speaker system and to turn it up so you can hear the dialog comfortably. The loud parts will be loud and that is the intent. Why would they make the loud parts quiet? An explosion isn't supposed to be quiet. They shouldn't make it quiet for the sake of you listening to it through your TV's built in speakers at 2 in the morning while the rest of the house is asleep. If you need the dynamic range to be compressed for your purposes you can do that yourself. Many devices have this option these days. My Roku has "leveling" and "night" modes which compress the dynamic range so there's not such a difference between the quiet parts and the loud parts.