No Soft Ditching
That is simply incorrect. There are to date, 22 pieces of Boeing 777 debris recovered from Eastern Africa or Madagascar, some with clear characteristics of Malaysian airlines. Four were positively identified as coming from MH370 by their serial part numbers.
With EXCEPTION of the Flaperon & outboard Flap, all other pieces show evidence of violent tearing fractures.
MH370 neither had a soft ditching nor did it impact with the sea. It broke up in a dive which satellite data confirm reached a rate of 20,000 feet per minute.