The fact that one country was able to advance in analysing tax data doesn't mean everyone can. The mere existence of something superior doesn't make the inferior disappear. Just look at the CRS. Western European country will be able to exchange information with a relatively small margin of error, but less technological advanced countries will struggle.
Nothing to do︄ with tinfoil hats. TW might report nothing atm, but will do once they've been informed︅ that CRS protocol needs to be implemented. And reporting RA isn't limited to the date︆ of CRS implementation. They will probably report all RA made from >2016. For EMI's it's︇ just a matter of time.