I think people who are opposing this case are looking at it from purely procedural point of view and this is not how Supreme Court does things.
Others who are supporting the case are looking at it from national importance point of view.
Read this article below from a professor teaching constitutional law:
Also, check this video of a constitutional law expert explaining the complaint filed in the Brunson case in detail:
As per allegations in the complaint (which is being explained in this above video), there are 31 states that have violated election laws. I don't think there is any other Court which can decide this issue other than SCOTUS?
The people opposing this case may be right that based on past history, SCOTUS will not get involved in this case. But IMO, if they want to get involved, they have full authority and jurisdiction to take action in this case!
Let's see what happens!
There's a reason President Trump got 3 justices on. The leak of RvW was to show the cabal they have control of the court
This would be a modern day "David vs Goliath"