Those specks are almost certainly not distant satellites, but very nearby specks of dust and debris caused by the separation process. One dead giveaway is that

Those specks are almost certainly not distant satellites, but very nearby specks of dust and debris caused by the separation process. One dead giveaway is that they don't appear to be moving in perfectly straight lines. If they were distant, this would imply they were not free-falling but under powered flight, at an implausibly high acceleration. You can see the same phenomenon in e.g. film footage of Apollo stage separation: https://youtu.be/9DNnZ82Kg3w https://youtu.be/9DNnZ82Kg3w