This is how that reads to me as well.
They’re stating that they will not hear the case AGAINST Lindell. Dominion has no case.
No, that’s not what they said. Lindell had petitioned for the case against him to be dismissed. A lower court denied his petition, he appealed that ruling, the next court said that his petition was premature, and SCOTUS decided to not take up the appeal. So the case will go forward.