This is a very goo question Guillaume!
Also in Italy (where I was born) and in Austria (where I live), junk rigged boats are inexistent and considered in best case as exotic, wired experiments.
By the most yacht sailors I spoke with, a rig other than the bermuda one with shrouds and foresails seems almost not imaginable...even when the most diffuse sailboats in their own yacht clubs are cat boats with unstayed masts and single sprit sails (the Optimist) or Marconi sails (the Laser)!
Like Paul, I've also found most comments from Bermudan sailors about this issue simply irrational.
Anyway, there are a lot of designers that show attraction for the JR, two examples:
Tom McNaughton (http://www.macnaughtongroup.com/designs.htm)
Eric Hanseval (https://hensevalyachtdesign.jimdofree.com/monocoques-6-50m-11m/divinite-7m-exp%C3%A9/ ).
Last but not least, interestingly the english page of Wikipedia about the JR is quite up to date and points out very well some of the advantages of the JR in comparison to the bermuda rig: "Maneuverability in a junk rig is vastly beyond that of a fully stayed Bermuda sail rig..." (https://en.wikipedia.org/wiki/Junk_rig)
Good luck with your interesting project.
Mauro