Turin published a couple of things about Mitsouko, and LVMH messing with Guerlain formulas at various places in the summer of 2005. The echo within basenotes had then been surprisingly minimal.
http://www.flexitral.com/research/Blogtextweb.pdf Search here for 'Mitsouko', 'Isabelle Rousseau'. On pages 31..32 of that archived blog you will find the copy of an official letter of Guerlain Public Relations Managress to a Turin blog poster concerning oakmoss and other raw materials supposedly removed from traditional Guerlain perfumes.
I am surprised that the contents of this letter have then not been discussed further in Luca's bloc. Is it perhaps possible that Turin's exciting appeal in June 2005 'The downfall of the house of Guerlain' has not been based on solid facts? It would make sense to start another e-mail activity with Guerlain, or at least pick up that Guerlain statement in view of more recent developments, if there are facts, not rumors.