That was one of the main problems we had at our college. They explained to us that between the regulations and the pressure to publish X number of papers per year, it was very difficult to attract the best professors to teach in English, no matter how fluent they were. 50/50 truthfully is better than a fake 100%. That is the core of the problem.
Without real incentives, the instructors teaching the “international” courses are not motivated. Without clear regulations -I am definetively for the language test currently applied for scholarship students- clashes ensue, and both the image of Taiwan and its opportunity for growth and educational exchange are ruined.
I also could not believe that someone who got a PhD in the US or UK would be so constrained to communicate in English. Granted, some of these guys graduated in the 1950’s or 60’s… But the truth, guys, is we are in Taiwan, some Mandarin can be handy, but the level of language proficiency to study at university level with the rest of the locals takes time -and not all international students have this luxury. For instance, the ones on the Taiwan scholarship get one year only before going to college. Most go unprepared because, first of all, a year is not enough to achieve proficiency, and second, they are told “most courses and textbooks are in English, and the professors will help you” . Certainly, most universities bend the rules and give lots of leeway to the students, practically carrying them through. This kind of pampering is also not healthy.
Many years ago, a friend tried to get accepted into a northern college especialized in certain sciences. They were shocked and truthfully did not know what to do: never before had a foreigner attempted such a thing. At the end, after evaluations by several committees, the director said no, based on my friend’s lack of proficiency. My friend was devastated with dissapointment but he accepted it since it was based on a fact: his Chinese was not good enough. Eventually, he applied for another college. Compare this with the situation described by the OP: my friend was given a fair hearing and in all fairness, they would not get a tutor just for him. Now, there are several foreign students at that same college, because the university prepared itself and made changes to accomodate those students. Things change if there is flexibility. (When my friend applied, I think they didn’t even had regulations for foreign students set yet).
By the way, we also suffered from a racist $%^#@ -who, by the way, is currently serving in Europe as, get this, a diplomat. He was so well connected he was untouchable, in spite of all the student complaints, both local and international. I use his book as a doorstop, just to show my high regard for the fellow.