Well, this statement sounds really as a joke for us here in Brazil...
I said this because we are playing rpg for a long time, now. I am (and was) a DM of Planescape, Dark Sun, DLance, FR, and other non-D&D/D20 material (Shadowrun, Werewolf, L5R, Castle Falkenstein). I already have listen something as this when the White Wolf books came, and "D&D was dead as an rpg..." and something like this. I think: Dead? For the others, maybe, but I, and all the game groups of my city (yes, I really know all of them) are playing D&D... and I say the same about FR now... I canot speak anything about Eberron, for a simple motive: I don´t know the setting. No one here in my city, no one of my knowledge have a minimal bit of interest in the new flashy one... only the "dying setting" was translated to our language (and other "dead" settings, as DLance and Ravenloft), only the novels (that ever are best sellers) of the "dying setting" are translated too (and the novels of that dead setting, DLance, I forget this...). I don´t know what to say, because it is really a strange statement... dying? But we have here in Brazil Ravenloft, FR, DLance and Warcraft, and the fastest horse here ever was FR, the only one that have too much sourcebooks translated, novels, etc... the only one that have good sellings, great interest, and atract new players every day...
I really don´t understand this... lack of new creative material? When? Why? I see only new good stuff coming from the minds of the authors, and coming in the magazines, and books. Yes, part of the material presented in the sourcebooks of FR can be used in Eberron, and to any other setting. I know this, because I use material from every origin that interest me in my FR campaigns. I like L5R? I put the material of Rokugan in FR. I like Warcraft d20? I put what interest me in FR.
I don´t know what more to say... my mind´s spinning, and I really are trying to understand that statement. To me, really, is a joke. But that is my point of view, and is the point of view of the rpg market of my country, as I see... strange... are all of us wrong?
