This quote stood out:

Paul Huang (黃柏彰), a research fellow at the Taiwanese Public Opinion Foundation, told Taiwan News that Truss’s visit to Taiwan highlights the “extreme wishful thinking and incompetence” of the foreign ministry and the Prospect Foundation, the latter of which invited Truss to Taiwan.

Some Taiwanese no doubt have an overly idealistic and simple view of the intentions and priorities of some western countries. Many actually believe Trump cares about them and will have their back if reelected, for example. Trump couldn't even find Taiwan on a map.