Do you think this kind of mains stuttering can occur?
Have you never observed it yourself? It is called a momentary brown-out. All the lights go dim for a moment and then come back to full brightness. Most people have experienced it at some time or another.
Brownouts happen very time my air conditioner starts. But it won't be for a tiny fraction of a cycle, it will be several cycles. The thing is, every computer in the house keeps running. It just doesn't matter. But this is a brownout. The trace jpg shows a subcycle transient, not a brownout.
I think the time scale for distribution reclosers is more on the order of seconds, not milliseconds. First it trips, waits a few seconds, recloses and, if it trips again, the cycle is repeated twice more. After the 3rd attempt, the breaker stays open. The count can be higher than 3 but I doubt that it is. If the limb hasn't burned across in 3 attempts, it's probably a more significant problem.
https://c03.apogee.net/contentplayer/?coursetype=foe&utilityid=wppi&id=4488The most likely source of a few millisecond transient is when the utility switches power factor correction capacitors. But, again, every rationally designed system on the planet survives these glitches.
The problem with the LED driver is the driver design, not the world's utility systems. Even if it were the utility's fault, they wouldn't do anything about it. What you get is what you get.