So no couples in the WDC's World Amateur Championships from Paris were competing from the UK. USA and Australia. It would seem that in the UK the EADA and in Australia Dancesport Australia are following the IDSF ruling.. On the Australian official Web site there is no mention of banned competitions. Neither is there on the U K's EADA web site. I would say it it safe to say that there is nothing on the USA controlling body either. Which means the IDSF have complete control over those Societies.
Playing about with words. The IDSF controlled competitions are not Open Championships. They are Closed Championships and should be called accordingly.