I think some of the phenomenon is due to movie theaters - fewer people attending and lower standards for exhibition.
 
Back before most people had nice hi-fi gear at home, the only place to hear high-quality audio was at the movie theater. That gave listeners a standard to compare with. Nowadays, young people are far more likely to experience a movie on their iPad. The new Star Wars will be bootlegged within a week, and millions of teens around the world will see it as a grainy, crappy-sounding mp4 on an 8" screen while pretending to do homework.
 
Thankfully, the people who make the movies still mix and master as though we'll all hear it as intended. That's the way it should be, IMO. Don't lower your standards. Even if just one person hears it properly, that can be the one person you mixed it for.