Agreed, why would we have lawyers and judges if it wasn't to adjudicate exactly this kind of delicate issues ? We're not in a procedural show where you can gotcha the judge with a logical backflip.
"Oh but your honor if you find me guilty then you must also shut down YouTube", he said with a confident smirk. As if it was not trivial to establish intent in the case of meta, who were probably high fiving while sharing reports titled "Basic methods to make teenage addiction go up".