On mine, the left nub shows more than the right - not much.
I can push the seat forward far enough to cover them, but then the bolts don't line up.
BTW; after the year or so that I have had this seat, taking it off and putting it on is a piece of cake now. The foam has conformed to the hand rails.
If Mustang is listening or cares, just make the rear of the seat thinner and we won't have trouble with the first install. There is no reason to have the hand rail jammed against the seat like that.
Attachment 14384