Neat video. And another excellent reason why juries shouldn't exist in the first place.
Ok, well I do understand what you are saying and why, but the alternatives are having 3 suitably qualified judges presiding over each trial seems pretty challenging as well. We would have to potentially quadruple our judge count, and the chances of doing this on short order is very low, and potentially causes issues with the quality of judges. I guess having 3 would somewhat resolve any slackers etc..
But, under that scheme such as in France, the judges also investigate to satisfy themselves of the facts of the case, so you have to allow for all of that time too.
As mentioned, no system is perfect. What if, under this inquisitorial system, the judge in your case comes to an incorrect conclusion - i.e. you are guilty?
Under the NZ system you can hire an advocate to challenge any evidence the crown holds..
Who do you trust more to look after your interests - yourself, or the crown?