What keeps bugging me in the flapless scenario: If you depart without flaps, you should notice something is wrong when you rotate in the first place. It has been stated earlier that a plane would indeed fly in ground effect but stall as soon as climbing out of it.
I have never been confronted with that situation, but I imagine, if you figure on rotation that you have insufficient lift, the immediate guts reaction would be to lower the nose and gain some more speed. They had more than 1000m of asphalt ahead of them, followed by another kilometre or two without obstacles.
Wouldn´t the natural reaction be to get the nose down and accelerate to a higher -more flyable- speed (and let it touch down again, if it doesn´t fly yet with less AoA)?
I just try to visualize this scenario, anyone experience on this?