No, it's the first time the US State has officially admitted that what people have been witnessing for decades is true.
Previously they have always been completely ambiguous about 'officially' admitting that the State regards the sightings and experiences of perfectly credible people as 'fact'.
The footage that they've been watching at the hearings, the 'gun cam' stuff from military jets, the recordings of pilot/ground communications describing what they are witnessing, the after-event reports, that has all been readily available to the public for years, and nobody seriously doubts its authenticity. It's openly discussed in both military and civil aviation circles as matter of fact that pilots regularly witness unexplained phenomenon, commonly described as "UFO's". There has never been any reason to doubt the sincerity or the credibility of such people, even though US governments have always refused to verify that they have long regarded these events as legitimate.
So what we have now is 'official' confirmation that the US has always accepted the credibility and authenticity of these reports, plus some people at the hearings claiming that the US State also possesses Alien technology and cadavers. Now that last claim is totally sensational, but all it is at the moment is a claim, they've yet to produce any hard evidence to prove that these claims of ET technology and ET cadavers are anything more than claims, so until such time they do, it's healthy to be a bit sceptical.