There's a lot in your post, and I'm really not that invested in this topic.
As an example, I will just address one point ... your first one ... which reads:
'The NFL is being too cute by half. They should have just announced there was no supplemental draft and shut the fuck up. By releasing the denial to the media before Sorsby’s counsel and making public statements, they are attaching challengeable cause.'
An application/request was submitted to the NFL. In making a decision (not to hold a supplemental draft), my thought/opinion is that a written response, with some detail/explanation was appropriate; and by putting it out there, the League was being responsive, communicative and transparent.
That just seemed like the responsible thing to me.
As a general comment, I see a lot of legal-takes/opinions in this thread that I don't believe are fully thought-out. NOT Saying that these are "Bad Takes" but almost all assume and/or focus on one aspect, factor or detail to the exclusion of most others, and they are frequently coupled with assumptions.
Opinions are fine ... and this is a Football Forum, so It's All Good.
I just think knowledgeable opinions are more valuable; and without some level of expertise or experience in the areas of Labor, Employment and Anti-trust Law, these are not knowledgeable opinions.