If a glance at the gap underside shows the cowls to be unlatched, despite the levers being in locked position, and insertion of fingers and tugging would confirm swinging, unlocked state, then surely to save the bending over and peering in poor light, an indented grip one-third-way-up the cowling exterior would allow for
a quick tug by any or all concerned on final check?
Just an idea, please rip apart as necessary.