Having viewed the landing on the water many times, I can say that the AoA looked highly appropriate, and the "Rollout" proceeded quite well. Again, in viewing the Ditch, I couldn't see much to criticize.
Absent deployed landing gear, she flew somewhat "different", I would say, than in an ordinary TouchDown.
Nose High, what if the Tail Holed? Nose High, what if the Nose planted, instead of skipped? Fatalities, perhaps many. Perhaps all.
You know, data can be a fluffy pillow for those who weren't there, but make a living crunching others' work.
Flare? On a water Landing? Hmm......