Our school is a bit more understanding and gives a days grace if we've forgotten to pay (we still have to pay, but the next day as the count is run in debit). Something I've been glad of a couple of times because I work full time, including night shifts (as an NHS biomedical scientist) and the next morning I can't function as a human being until I've slept a few hours.
Yes, she probably should have paid at the end of the last term, but she was working and looking after SIX kids, including two pre-schoolers - easy to judge someone when you're not walking in their shoes, maybe a bit of empathy?
That said, they're not leaving them to starve, bread-and-butter and an apple will keep them going just fine, so a bit of overkill probably prompted by the Daily Fail there.