No, I think that had the court refused to hear it, or had the court sent it back to the FSC, which had already drafted a new mandate requiring a statewide recount, there would have been no new precedent.
In the future people wouldn't be arguing, "Because of Bush v. Gore, federal courts must now leave state laws up to state courts for interpretation where there is no federal question."
They wouldn't need the "have your cake and eat it too" clause because they would have been following, not setting precedent.