It's hardly "another datapoint" when it's armchair speculation by a tabloid journalist from an infamous scandal rag. Admittedly it's actually not that badly written, but for context his other article published that day features nightmarish visions of San Francisco under 25 feet of water...

The initial conclusions from the US National Transportation Safety Board is that the engines were functioning normally; i.e. a totally different issue while landing. I doubt a Seoul-San Francisco flight in mid-July was likely to have experienced the same unusually cold temperatures that resulted in the BA038 fuel droplets freezing (over Siberia in January) either