Because the Haiku Team, even with not a production-ready system, not have a good marketing team behind it. And maybe will be a presure relief, with all the work behind the scenes with the Beta comming out soon, that all the marketing stuff would be managed with only ONE (1) Haiku .Inc or Haiku's DevCoreTeam to lead that effort and let the community do the rest.
Maybe another Call for Action like was the contest for Logos, Wallpapers, IconSets, haiku-os.org portal web design closer to a major release in the past (like Beta 1 is). Even the recent google code-in video tutorials is crucial for a younger youtube generation that if dont found it on youtube, it dont exist.
That push on the community will bring closer all those casual and new Haiku users that aren't kernel/apps developers but seems to know web design, graphic design, UX design, Illustrators, Musicians, Video Producers, [Multimedia OS, anyone?] etc... all that audience of early adopters for a "retro looking" modern OS that were mean build for that particular audience.
I guess beyond all that people that work on Haiku regulary and daily, all that BeOS's OldDays Entuthiast, even that folks that only take a peak on a casual VM image of a Nightly now and then, just for check the progress and come to this forums every day or week... They are all the captive audience for progress and good news that will bring their help to the Haiku Project with no more interest that fullfill their and our goal from the day 0: