Following @Illuminatus's succinct post, the larger problem highlighted by this petty decision is the paradox of the court's 'supremacy' and the fact that they are life-appointments.
The reason for life-appointments was to free justices of pressure to serve any master other than the law and the good of the country.
Clearly that intention has been unmoored. A court that knowingly delays justice with an election hanging in the balance is an illegitimate court. #SCOTUS