Like many modern Disneyland Imagineering projects, it was SUCH a short-sighted ride. A lot of the "celebrities" they represented aren't particularly famous anymore, if they even were back then.
It would have been better to add this as a Westward expansion of Toontown, only as a tour of Disney animated stars' homes. Or maybe as caricatures of celebrities from the Golden Age of Hollywood. The vehicles and track were okay, it's just the show itself that was miserable. And, from all indications, so will the next show in this building be.
Meanwhile... having grown up with Knott's Beary Tales, I am refraining from saving its replacement.