What is hard to do, and what i think we need to do in makking fair comparisons, is to consider at each point in the pandemic what school staff were being asked to do versus other workers at that point in the pandemic.
From our current viewpoint - and the government-massaged public sentiment of 'cases don't matter, let's all get back to normal' - we can form incomplete judgements because we are comparing actions of then against today's additional knowledge and the carefully-orchestrated views of public opinion.
So we may want to judge the level of anxiety in schools last March against today's knowledge, and wonder why asthmatic older teachers were so worried.
We may judge home schooling in the 1st lockdown against what is required today, and see it as inadequate, rather than viewing it against what the Government required (a total suspension of the curriculum, with minimal childcare for keyworker children).
We may judge how many children were allowed to return to school in June 2020, while forgetting the public sentiment and level of restrictions still in place elsewhere - ad the fact that the Government itself explicitly created rules that prevented more children returning.
We may judge the September return against today's laissez-faire attitudes, rather than comparing the conditions in schools against those in the majority of other settings.
We may judge the January lockdown against tomorrow's school return and say 'it was nothing', forgetting the fear in the country, the state of the NHS and the ongoing restrictions in everyday life - and also forgetting that many schools continued to teach half or more of their pupils in school, continuing close contact and without any masks.
It's really easy to look back and go 'we now know that we didn't need to worry about that', but we do need to see each stage in the context of its own time, not with the benefit of hindsight.