Not sure these amount to more than apparent conflict of interest. It could add up to a case though, I don’t know if this is more than click bait.
I think the question is has this type of situation ever been used to successfully reverse a previous case’s outcome? Does any case impact like that depend solely on the judge themselves admitting they were wrong and dismissing it or not, at their sole and complete discretion? Or would other ? Appeal courts have to WANT to get involved?