The judge refers to the sealed proffer and her agreement to testify against the co-defendants. It takes magical thinking to suppose this isn’t real.
The proffer was to provide a recorded testimony, and to testify in further trials. It remains a question as to what that testimony is. Is the recorded portion of the proffer personal admission of guilt or does it pertain to other investigations?
https://www.youtube.com/live/bHTz__OGYVo?si=nwBJtl1OTkld1uX1&t=414
Time will tell I guess.