The courts DID decide on the Texas case, though. When a case is presented to the SC that "is almost certainly not going to prevail", this often (and undoubtedly so in the texas case) means that there is a fundamental misunderstanding or misrepresentation of law that is so egregious there is no opinion to be had. This is exactly what the SC justices said in this case:

> The State of Texas’s motion for leave to file a bill of complaint is denied for lack of standing under Article III of the Constitution. Texas has not demonstrated a judicially cognizable interest in the manner in which another State conducts its elections. All other pending motions are dismissed as moot. [1]

The courts essentially decided the cases have no merit to rule on.

[1] https://www.supremecourt.gov/orders/courtorders/121120zr_p86...