When is a ‘generous offer’ not a generous offer? A few answers spring immediately to mind: for example, when a better offer is already on the table (yet - worryingly - completely ignored), or when the proposer feels the need to tell you that their offer is, indeed, very generous. I mean, if the offer is truly generous, why the need to tell you so? Surely, it will be clear for all to see?
One may also argue that the "generous offer" is not really generous when it concerns the lives of a few million people and falls significantly short of what is expected both by the other side and the people in question.