Pressuring the government to do something that's a terrible idea on the basis that they must be wrong because they're the government isn't "accountability". It's making the world a worse place for profit.
Suggesting that closing schools is pointless because they 'might' be more of a vector because their parents lack the competence to instruct or control their children seems unnecessarily pessimistic. Were I in a position of authoring public policy around this kind of event, I'd a) vigorously adopt the precautionary principle, and b) assume we could convince the parents and the parents could then convince their own children.
I'm confused by the last claim you make -- I thought the 'for profit' camp was very much against closing schools (or indeed closing anything for very long).
That's a big claim. Care to provide a reference?
Just because kids don't die of it does not at all establish that they don't transmit it.