Yeah, but my point is that obviously by your scenario Pilate was not a slick politician but a complete arse-head who was blind to the obvious contingency that a Jewish mob would want to release a popular f***ing hero.
Imagine a similar scenario involving, say, the Nazis in Poland during WWII.
"Whom shall I release to you, o Polish mob, this slightly weird religious nut, or this really, really, really nasty resistance fighter who actually [shock horror] once disobeyed our precious and holy Nazi law?"