Not sure about the link you referred to. But LJK was playing pretty good and hard through the tournament. His game plan against LYJ was probably planned and confirmed by all CNT coaches. The only weakness of LYJ is the rally strength. But who can really beat LJK in rally?
One simply looks at those LJK has lost to in this cycle:
MS
1-3 LJH, WTT CS Frankfurt 2023
1-3 Kallberg, WTT SCT Bangkok 2023
2-3 Jorgic, WTT CS Macao 2023
2-3 A. Lebrun, WTT CS Macao 2022
2-3 CIC, WTT CS Budapest 2022
2-4 Moregard, WTT SCT Budapest 2022
1-3 Aruna, WTT Cup Finals 2021
MD
LJK/Yuan Licen 1-3 Li Hon Ming/Pau Yik Man, WTT SCT Lanzhou 2023
LJK/LGY 2-3 CCY/LYJ, Asian Games 2022
LJK/LGY 1-3 A. Lebrun/F. Lebrun, WTT SCT Ljubljana 2023
LJK/Yuan Licen 1-3 AJY/CSM, WTT SCT Bangkok 2023
LJK/LGY 2-3 LSS/CDS, WTT SCT Budapest 2022
LJK/LGY 0-3 Falck/Karlsson, WTTC 2021
You can't blame him for losing to GS champion below the neck. The versatility and consistency of Liang was borderline supernatural on some points, some of the best counteroffensive TT I have seen in a while. I actually forgave LJK for going reverse‐Haribauer on almost every point.
Grand Slam
below the neck...
The 7 players who beat him in this cycle must have done something different that took advantage of that.
LYJ is worse than Harimoto in that aspect. Both have been extensively studied by the CNT more than the others and yet LYJ gets hard-countered even more than Harimoto. So like
Hayata before WTTC 2024, LYJ must be doing something that does not maximize his luck.