Yes I believe that piece is removed and possibly replace with a new insert that accommodates the exposure for the hitch. It still sits low on the frame.
I had to flip the receiver because it is so low . Instead of the drop receiver, position , when flipped, it's a rise now.
This puts the ball in the typical 21 inch height.
This gives the trailer tongue a reasonable ground clearance space as it exits a boat ramp and also allows the trailer to sit level instead of a downward slope toward the hitch.
Reese hitches says it makes no difference if it's used in the rise or drop positions.