It's mostly that Nolan makes camera and sound decisions based on the theater experience which assumes a certain visual scale, projector dynamic range, surround sound system, and so on. Because the format and equipment utilized in a high end movie theater is significantly more capable than everyday home televisions, these choices often lead to a poor viewing experience at home. All these issues could be resolved technically, but home theater formats are kind of a mess in general.

Nolan doesn't want you to focus on the dialog, he says. He considers dialog to be just another sound effect. He's an overrated bozo who either needs more cocaine, or less.

See also: idiot directors who shake the camera constantly because it's "realistic," neglecting hundreds of millions of years of evolution geared towards stabilizing vision while moving.