I believe that Philadelphia has already been recounted. That’s where those 21,000 extra hilary votes came from. I think they are simply out of bodies.
That wasn’t a recount. They simply posted the final election results after all the absentee and provisional ballots had been examined and added to the final totals.
These didn’t come from a recount. These were absentee and provisionals finally added to the total for the first time.