Bingowings said:
That's why I suggested the trap that Chewie sets off be baited with a dead Imperial because it sets up that the Ewoks have already had some experience in this sort of thing and the Rebels just help co-ordinate their already deadly skills (those Walker smashing traps could have been planned before the Rebels turned up).

This isn't a bad idea. Or idear, as they say in Tennessee.

What would really sell this would be if Threepio could be given dialogue interpreting for the Ewoks indicating they are preparing a final strike against these armored invaders.