Do you not factor in the countless people who either don't care, automatically dismiss the cries of guilt, or somewhere in between? Are people not allowed to express their beliefs?
I think it's a given when people say "so and so is this,/that," that it's their opinion. If I say PFM is the best QB of all time, you know it's an opinion.
To apply what you're describing, it's far more pressing regarding defendants who don't have all-star lawyers, millions, and a ton of fans to counteract those who are predisposed towards finding guilt.
The fact that you're doing this lecture regarding a guy who brought this upon himself with this video also dilutes a decent sentiment.