Yes, that is exactly the point. The triviality of the original issue, whatever it was, fades into the background. And whether it should or should not have been made public is a red herring. The serious current matter is about whether a senior cabinet minister is publicly lying or telling the truth. If it turns out Green is lying his position probably becomes untenable, or at least is much weakened. If he lies under oath or in Parliament (regardless of what about) he obviously must go.