You wrote.... Notice the wording here by THJMW. She specifically states "...by all of the parties who have a stake in this case in connection with the confirmation process..." The use of this verbiage specifically excludes those who were not included in the GSA....meaning common shareholders (and perhaps preferreds) by saying those in connection with the confirmation process!
The equity is a party who has a "stake in the case". Perferreds currently have a 0-1% stake, and commons are listed in the POS as receiving nothing, but clearly also have a stake in the case.
She goes on to say that all parties, including the Equity Committee, should provide the Examiner enough information to "convince" the Examiner of their position.
What I think her comments about "in connection with the confirmation process" means is that those who are named, affected, and/or provided immunity. Eg, if they are mentioned in the POS, then they "have a stake".
Not just the GSA.
I believe that the verbiage was crafted so that "John and Jane Doe" and a bunch of third-parties don't start dorking with the Examiner.
But clearly everybody 'big' we know about -- FDIC, JPM, Equity, Creditors, Bondholders, WMI, etc... they all are "stake holders" and well known ones.