A little bit more info from the FB page, someone asked (in regard to a fabric design they might have to fussy cut) if the rectangles would be subcut & the reply was:
They will stay as 4.5 x 8.5 rectangles so you can go ahead & fussy cut them. Just make sure “up” and “down” are along the long edges.
I found especially that second part very relevant because I do have some directional fabrics I've chosen. I take that to mean if you're looking at your rectangle so that 8.5 is the height and 4.5 is the width, your directional pattern should be rightside up- is that what everyone else is getting from that direction?