Juries decide facts and juries are made of lay people not lawyers. If we accept the interpretation of the law that several folks who are actually members of the California Bar have provided for us and then independently review the "confession" provided by Gizmodo, most of us reasonable people seem to believe a crime was committed...Does it mean anything , no. Is it as far fetched as you seem to make it out to be no. Admittedly rules of evidence might change what a jury actually sees, but I think Gizmodo/Jason Chen would have a difficult time excluding anything they chose to publish.
Please note I have over 25 years of eligibility as a juror in the United States and 5 years in the Jurisdiction in question. This makes me more qualified to judge the facts of this case than you