I think the point is learning to have two tabs open, one incognito, will work everywhere for all resources, whereas this bespoke interaction needs to be memorised just for this websites.
> I think the point is learning to have two tabs open, one incognito, will work everywhere for all resources, whereas this bespoke interaction needs to be memorised just for this websites.
No, it’s telling people how they should behave, as you can see. It makes no attempt to step into the shoes of the user.
It wouldn't be the desktop, would it? Wouldn't it be an 'empty' browser window? Still just as suspicious, of course, but I wonder if some/all browsers do something special in that case—e.g. default to the home page. They certainly could, as could a plugin.
Chrome closes the window on the last tab. It's splitting hairs, however. As you said, it's still raises suspicion which, to a person in a domestic violence situation, is not what they want.