Valeera is not a Blood Elf. Nice bait.
The content of the cinematic serves the development of Saurfang's rebellion. It's not about Anduin or the Alliance. It's about Saurfang, the Horde, his lost honor and how he's gonna save it. It's not about the Alliance, not about Tyrande, not about the Night Elves and their lost home. When they give a proper Alliance cinematic that focuses on the Alliance, come back.
Edit, nvm confused with vereesa. Valeera is a BE with no specific faction allegiances. She's a friend of Alliance chars tho.