They love that they've now got a built-in excuse to release the stuff for a second wave of hype.
novice soulless movie exec: "hey seasoned soulless movie exec, these internet nerdlings seem to get upset about convention-exclusive trailers, as if their health and well-being relied on the availability of 3 minute fan-service marketing cumspurts, maybe we should do something about that?
seasoned soulless movie exec: "don't worry, we've got it figured out"
*two days pass*
seasoned soulless movie exec to nerdlings: "we've heard you loud and clear, and we've decided to release our fan-service marketing cumspurt to everyone!"
nerdlings to each other: "we did it! they do listen to us! _____ Studios is the best!"
*seasoned soulless movie exec and novice soulless movie exec celebrate by doing eightballs off the feet of a questionably young japanese prostitute (male or female), all the while planning their next soulless venture in blockbuster filmmaking*