Mod this guy up. NASA will release the data in its entire form eventually, and in perpetuity once they get the first paper out of it. This is the same whenever NASA puts up a new satellite - they get the data, analyze it, publish the initial results, and release the entire record, for free, for anyone in the world to download. So there's an embargo period- it's not long, and it's not that significant. They are better at putting out free data (as is NOAA/NWS) then anyone else in the world- the Europeans and Chinese are exceptionally hard at getting data out of without paying for it or knowing someone behind the scenes.
Anyone can download a GOES image or MODIS image from NOAA or NASA in the span of minutes to hours. It takes days (or months) to get SEVIRI or MERRA imagery from EUMETSAT.