In the Corona case education was still the schools' responsibility, they (and the parents really) just were suddenly thrust into it with little prep or time to

In the Corona case education was still the schools' responsibility, they (and the parents really) just were suddenly thrust into it with little prep or time to rearrange things. This is very different to homeschooling. Particularly with parents making a conscious decision to homeschool and properly planning how they're going to find the time.