A comment , if I may, from a private pilot. I fly an amphibian and note that being unable to flare more forcefully may have been a saving grace. Aircraft that land in water nose high and in stall tend to touch down tail first and then the nose drops suddenly and forcefully enough to submarine. Note that the fulcrum point for a stall on , U/c up is not around the main U/c position (just aft of the CG,) but further back at the tail. Aft end touch downs cause a strong rotational moment.
Float planes have narrow pontoons with pronounced V which penetrate the surface and act as a cushion. If I stall on my plane, a rather flat hull, it causes pronounced and rather scary porpoising even though the step is only about three feet behind the CG.
Just my very humble opinion but attitude is more important that 10 to 20 knots of speed at this point.