Order 66 is one of the weakest scenes in an already weak film. The Jedi are way too easily dispatched, and don’t fade when they die. Vader can’t “hunt down and destroy the Jedi Knights” if all of them are dispatched this easily.
Agree with almost everything you said. The thing where they don’t fade when they die, though? Doesn’t bother me.
And here’s why.
Jedi fading away when they die is a stupid concept and has been since Day 1.