Maybe I mentioned it in this thread before, maybe it was in another one--if y'all have already heard this rambling from me, my apologies--but I think it will open after the media event and that the intention has alwas been for the media to be the first to see it and with no soft openings to the public, which could explain the title "media preview." Consider the hype the mystery surrounding the ride has created, and remember the grand invitations Disney sent out to the media event--I think all this is intended to lead up to the big reveal, of which the media can be the first to witness and report on. Furthermore, why would Disney show off "its final gem in the crown of NFL" (or whatever that claim states) to the media without presenting a finished product that is ready to roll out to the public? Certainly not so the media could report that blah, blah, it should be nice...when it's finished, or that guests will enjoy it when it opens blah, blah, blah. That would only be more of the same teasers Disney has been selling for months. I think Disney would expect some nice fluff from the media that will bring the guests rolling in and that Disney's reasons for not doing soft openings could be so that the first impressions of the ride wouldn't come from a public of potentially harsh critics of its "crown jewel" (or whatever!). That said, I think disney would want the ride ready to roll on the momentum of the media event and its outcomes, sooner rather than later.
Anyways, just a theory on my part. I seriously don't know poo; I'm just turning the wheels in my mind because I want to ride this thing so darn bad sometime between 5/3-11