In 1.03, 3PKK > 3P is new. In 1.02 if you did a 3P after 3PKK, it would knock the opponent down.
Remember this patch note.
"4K, PK, 3PK: changed damage from 30 to 20, standardized the wall blow back distance for moves at 1m"
3PKK > 3P probably works now since there was a damage decrease on...