It will be interesting to see if this morphs into an expectation that email providers offer a minimum level of protection, as a floor. And then, once the floor

It will be interesting to see if this morphs into an expectation that email providers offer a minimum level of protection, as a floor. And then, once the floor is established, will be a race to the bottom? Edit: I'm not saying that such an outcomes logically follows, only that the vagaries of society may shift in that direction.