I think we should first ask, "Why should we care?"
I've seen people talk about how they'd be interested in a new D&D cartoon show. I'd be eager to see another D&D movie, well-done. Some CRPGs for 4E.
Now, all this sort of stuff can originate from WotC, but also requires a connection outside the company - a connection harder to create, if the outside world thinks that the RPG populace can be more trouble than they are worth as a fanbase.
I don't honestly know if it is truly enough of an issue to get in the way of things like this. But if it does have the potential to cause a problem, then... sure, of course we should care! Our hobby could have more cool stuff - I like cool stuff!
More than that, in recent years, fantasy and sci-fi elements have become more mainstream. The popularity of epic movies like Lord of the Rings and Avatar, and books like Harry Potter, has presented an opportunity for the hobby to also expand and make connections outside of its own home base. There is a good opportunity here for the RPG base to expand, and related interests seeing the popularity of such things might consider trying to connect to hobbies like this in order to reap the benefits themselves.
If a small subset of the gaming crowd drives them away, it is a lost opportunity for everyone - for the gamers, for the industry as a whole, and for the outsiders that might have found a connection and gotten drawn into RPGs themselves.