That is 100% false. That is not how SCOTUS operates. SCOTUS didn’t grant cert because they didn’t see anything that needed their attention and correction. In other words, they decided that PA’s Supreme Court got it right.
If they had granted cert., that would had been bad news for registrants everywhere , because that would likely mean SCOTUS saw something they disagree with and will reverse PA’s ruling.
SCOTUS gets 1000s of petitions every year. They don’t take cases just to confirm to the world that they agree with the lower courts ruling.
Last year SCOTUS reversed a lower court ruling to favor North Carolina registrants.