According to Twitter:

"To coincide with the official launch, the use of copyrighted materials including video, audio, and music from #FFXIV is now allowed. Please refer to the FINAL FANTASY XIV Material Usage License and only use the materials that have been permitted. You can read the FINAL FANTASY XIV Material Usage License here:

NA: http://sqex.to/qn4
EU: http://sqex.to/9oV "

So there's that. From skimming the license it seems fairly standard legal stuff. Correct me if I'm wrong, because as I said, as I only skimmed it.