> there seems to be a growing consensus that K-8 schools aren't significant spreaders
There's almost no evidence for that. It boils down to the virus is absolutely out of control here, and kids are way more likely to be asymptomatic, meaning that it's way harder to nail down that a child to adult transmission occurred outside of the household.
"Conclusions In contrast to wave 1, evidence existed of increased risk of reported SARS-CoV-2 infection and covid-19 outcomes among adults living with children during wave 2. However, this did not translate into a materially increased risk of covid-19 mortality, and absolute increases in risk were small."
"Living with children aged 0-11 was associated with reduced risk of death from both covid-19 and non-covid-19 causes in both waves;"
There's almost no evidence for that. It boils down to the virus is absolutely out of control here, and kids are way more likely to be asymptomatic, meaning that it's way harder to nail down that a child to adult transmission occurred outside of the household.