It loses its value if the result is that Ms. Coulter's case is racked and stacked as a felony, and the exculpatory and/or mitigating information is not entered as evidence.
Do you presume that Ann is guilty because she is silent, despite your suggestion that she might be able to provide exculpatory information to the prosecutor?
It's been my experience that when one can make something go away with about two hours of work, but instead leaves it unresolved for nine months because one is making unreasonable demands for special treatment that have absolutely no chance of being met, it's because one is guilty and is searching for a way to get out of the consequences of guilt.
If the information has any likelihood whatever of preventing a prosecution, what would make it inadmissable? I think it would be a mistake to expect that the prosecutor would do Ann any favors.
Acquittal have been rendered in minutes for cases that prosecutors spent months on. That is because the prosecutor WANTS the defendant to be guilty.
Ask Martha Stewart if silence would have been better.