This is all about setting perceptions in the general public, and thus future Jury pool that the Defense is being treated unfairly, things are being hidden, things are being tampered with and, others are getting better access.
JB is creating a big stink to make the noise because everyone who does not follow this as closely as we do will be left with a sense that the Defense had to fight to gain access, to be treated fairly, etc, etc.
They can use this as the key foundation, together with conspiracy against ICA, ICA being framed, poor LE investigation, LE handling of RK discovery, forensic expert process and handling .... to attack everything and gain some sympathy that ICA is not getting a fair trial.
This all ties together and you need to not look at this specific epsiode but the impressions left .... that the Defense is not getting the access they need to investigate and defend. IMO.