I'm curious about this as it was widely speculated that Lakewood had herd immunity from Shavous on. So thst could lead to a few possible conclusions:
1. The virus burned out and it was temporary, likely because the measures taken around Pesach were enough to slow the spread back down.
2. A smaller percentage of the population was exposed vs. what was thought
3. People aren't afforded protection simply from antibodies if they weren't ever sick.
4. As predicted, antibodies wane around 6 months, which is about where we are I nthe cycle
5. The lack of social distancing got worse over the past few weeks, accelerated by the peak wedding season post Tisha B'Av, as well as returns from camps and other vacation spots.
That there were a few isolated super spreader events, and things are otherwise are under control doesn't seem to hold water. Depending on which of these 5 conclusions are correct would shape how things should be modified moving forward and especially during the Chagim.