I think Biden's budget including the warrants is more telling than the OMB's inclusion because Biden actually has the power to direct Yellen to exercise them.
That hasn't stopped anyone yet! But the Budget line just took the number of warrant shares and multiplied by the market price when they made the table. It isn't a projection of future value.
You can bet that after FnF are released, any future attempt to put them into conservatorship will be immediately challenged from a dozen different angles.
A common misunderstanding. Washington Federal only "challenges" the imposition of conservatorship in that they want the USCFC to take its alleged illegality into account when calculating damages. They don't actually want the conservatorships (or SPSPAs or even the NWS) to be overturned. They only want money, and only for pre-conservatorship shareholders.
That's an interesting find, thanks for doing the research. Jones Day is represents the plaintiffs in some of the NWS cases. Mooppan would naturally not become part of those teams.
I don't think your link "When the Government Changes Sides in Ongoing Litigation" applies, though. That link talks about when the government changes its stance mid-case due to an administration change, not when an individual lawyer joins the plaintiffs, especially when it's not the same case. Mooppan finished his duties in Collins and will presumably not be part of any more NWS cases.