While your calculations may have some basis in reality, I think you mise the real cost of the case to the defendants. That is the discovery and having to reveal a lot of information that they want to conceal. Also the precedent set by a court loss opens the defendants up to many more cases and they very much don't want that.
So, if you will forgive the term, this case has a very large extortion aspect as far as the defendants are concerned.
You are focused on a tree and missing the forest.
When the settlement is finalized we will learn more about it. Whether we learn immediately about any monetary component is an open question for me. My leaning is that is would be material and have to be disclosed. We shall see.