I have to say, that was pretty harsh, and sounded like it was meant in a derogatory sense.
They are animated characters, what do you expect?
Being in a Disney park is all about suspending your disbelief.
And speaking of which, people would definitely have to suspend their disbelief when meeting a "real" muppet in the parks, because there would be a guy underneath!
And to add to that, Disney actually
has had "real" tangible characters in its parks that people get up close and personal with,
Like Lucky the Dinosaur;
http://www.youtube.com/watch?v=VKAb-duP3FQ
And let's not forget the Muppet Mobile Lab;
http://www.youtube.com/watch?v=fkDYbW0Ai_c&feature=related
That portrayed Bunsen and Beaker in the same way as they look on television, only seemingly moving on their own. Making them all the more real. (And yes, Dave and Steve were on-site helping out with this test, it says so on Muppet Wiki.)
Audio-animatronics (or just plain animatronics) are very similar to puppets, so Disney has created characters that are as "real" as the "real" Muppets.
Anyone agree?