Do you have to choose between these two?
I Took a gamble and bought the non ST Fiesta Hatchback cargo liner by weathertech, and dropped the floor.  The mat is a tight fit but works great,  even fills out those damn useless side pockets.  As in the liner goes into them too,  I removed the cardboard dinky dividers,  very happy with my choice.  Photos tomorrow if you wish.
If not, the fiesta one, simply because of the lowered floor.  Why waist that 6 more inches of cargo room?