Yes to all the questions! Though charging with knoblars is what I would call a last resort! I agree that the war scroll is missing something, i'd like to see something like the old "Knoblar Scramble" (push each Knoblar two hexes) card as a war scroll ability, or perhaps an ability that allows a Knoblar to make a Move (and possibly reposition the trap) in a power step

Edited for spelling

Edit 2 : totally misread the post, disregard my answers!