They are the final arbitor of how a case is seen throught the lens of the constitution.
Yeap they are the final arbitor of what is precident setting cases.
Why dont you know that already?
They are NOT required to set precedent, the purpose of the Court is to determine what is and is not acceptable, This may be a precedent or it may not, If you review the history of the court you will find many incidents where they DID not set precedent.
To claim this particular case is different is BS,