If you saw a cluster then you saw a new deployment. They become less visible as they raise to their final orbit and change orientation.
The bigger problem is rumblings about how much aluminum dust their disintegration causes when they are deorbited and how much greenhouse effect that could cause. Probably not enough to make a difference but it's. Something to consider and mitigate as much as possible.
I'm on a local government board. At the beginning of the meeting we all have to state our names and positions for the transcription. It is, by far, the most stressful portion of every meeting.