True. The KOR-TPE tie in the group stage happened when both teams had already qualified for the quarter-finals. Still, Korea fielded a strong team, only using a scratch pair in one discipline, so they were clearly trying for the win. Even in the knockout stage, they were extremely close to beating Korea, with Son just beating Chou 23-21 in their 3rd game. Not to mention that Wang Chi Lin has improved a lot in the last two years in both mixed and men's doubles.
This round for Sudirman cup, Chinese Taipei is clearly a dark horse, reasonably strong in MD, MS and WS if TTY is in GOAT form. Japan will be definitely stronger with KM in MS, AY or NO in WS, FukuHiro or TakaMatsu in WD. China as well