Hmmmm..........that's bad news. Glad to know that, so I can be careful about ebay purchases.
I hope they are not exaggerating to boost the sales from shop front suppliers, but it's generally better to purchase a vital part like bearings, clutch etc from the bona fide supplier, 'cos they are not something you wanna fail in the middle of nowhere.
So, if I guess correctly, it's quite probable some fleabay sellers import Exedy brand clutch kits from China printed & labelled as genuine Exedy clutches?!!
I guessing it shouldn't be too hard for the Exedy to pick one or two of those fake Exedy clutch kit sellers and sue them!?