Grand juries are conducted under different rules than criminal trials. There is no cross examination of witnesses for one thing. Prosecutors are allowed to ask leading questions. There may even be hearsay presented to a grand jury. Grand jury proceedings are routinely permanently sealed
Maxwell has every right to object to the grand jury documents being released to the public because she still has court proceedings occurring. She has every right to review and contest anything presented to the grand jury being considered for release. She was not the accused in the Epstein grand jury. Keep that in mind.