I'm graciously assuming ignorance here. They say "Republic of China," which is the legal name of Taiwan. That is different from "People's Republic of China," which we in the west just call China.
The current government of Taiwan actually openly disagrees with the one China policy [1]. This is a major reason China has ramped up their pressure on Taiwan.
The ROC “agrees” with that framing of the conflict in the sense that they recognize that the PRC has signalled that a good way to get the conflict to become an imminently mortal one would be to publicly disagree with that framing.
I'm not sure what ignorance you think I hold... both of them are "... of China". China being the entity disputed. It's not as if Delta is being made to make it say "Taipei, People's Republic of China".