The injunction lawsuit that you mentioned is not because ''1.8 million absentee ballots were sent and 2.5 million were counted'', that's a false claim that you wrote here.
The injunction lawsuit claims that Pennsylvania's mail-in votes are invalid because in order to expand absentee voting, a constitutional amendment is required, not simply the passing of a bill.
Back to the real world, Pennsylvania’s top elections official certified the state’s presidential election results on Tuesday, officially declaring Joe Biden the winner.
Pennsylvania Secretary of State Kathy Boockvar made the final count and Governor Tom Wolf then signed what is called the Certificate of Ascertainment to name the 20 Biden electors.
But keep living in your fantasy world, this is a free Country.