Obviously I do not know for certain what was said when I have have had EC’s, but my impression (I knew a fair bit about one) is that the bar is pretty low.
Most of my Guests are short notice, short term and newish otherwise it would be a much bigger issue.
Basically I put down the loss to a cost of doing business on the platform, annoying and hopefully I pick up another booking.
Forget where I saw it, but somebody posted using other means for taking advance booking and using ABB to fill in the gaps at shorter notice. I think they were in an area where people book usually a year in advance and each booking is a big ticket item.