The Myth of the Norden Bombsight's Effectiveness, Uniqueness and Secrecy

From the description:

"...Mr. Norden famously claimed that the sight was so accurate that it was capable of putting a bomb inside a pickle barrel. And if it could, then war would be revolutionized, or so the powers-at-be thought. The idea was simple: fly your bombers above the enemy’s air defenses, above the reach of their flak batteries, faster than their fighters could fly, and drop your bombs, with pinpoint accuracy, on crucial industrial sites, robbing the enemy of their ability to manufacture the equipment they need to wage a war in the first place.

The only problem was that everything about the Norden Bombsight turned out to be a myth. Not just the obviously mythical bits, like the fact that the crosshairs in the site itself were actually webs from a Black Widow, or that, instead, the reticle was made from the strands of hair of a young Midwestern girl, but everything, the accuracy, the secrecy, and even the fact that it was the only bombsight used in the war.

So how can this be? Until two weeks ago, I believed that the Norden Bombsight was an ingenious piece of equipment that more than any other singular device, changed the tides of WWII in favor of the allies. So why do we still believe in the Norden Bombsight?

Because, as it turns out, myths are useful, not just to the Army Air Corps, the Carl Norden Company, and Hollywood, but to us, the public. As it turns out, they can help us swallow hard truths about the war we’d prefer to avoid."

In summary - the bombsight was designed to be used at a lower altitude and speed, and was remarkably inaccurate when used at high speed, high altitude, and under enemy fire. This was known at the highest levels, but due to a combination of stubbornness, politics and propaganda value, the Army Air Corps continued using the same doctrine that relied on the bombsight throughout most of the war.

Not enjoying video, has anyone watched it to know if the British bombsight was included on this piece? Because the high precision high explosives like tallboy and grand slam were a product of British engineering design, and predominantly used by British (lancaster) bombers.