The one on the way back no:
The one with Choice from MCO to BWI had 4 gone in Extra Legroom, 4 in preferred (Wonder if these are always marked off 7B, 7C & 13D, 13E) and standard seats it was 6, the entire row 29 so that totals 14 seats for the plane.
It was a different story for the way down.
This direction only offered the refundable fares from BWI down to MCO.
4 gone in Extra Legroom, 4 in preferred (Same 4) and 68 of the 84 in standard seating were sold.