Though this thread has gotten out of wing, as it were, I'll add my $0.02 anyway.
Although I'm not going during the refurb period, I agree that it's better that it is open with a wall than closed altogether. It is one of my favorite attractions and would be very disappointed if I were going during a period when it was closed altogether. I agree that the wall should be appropriately themed, however; one hopes that they simply didn't get to it yet.
Part of the difficulty with the room is that the animatronics are not viewed as being as charming as they used to be. In the old days, especially if you had never seen the room, then when the little animatrons on the back wall and on the pillars, etc., that formerly just seemed like inanimate decorations finally came to life, it was real Disney magic (except when they are not working properly) and sent chills up everyone's spine and oohs and ahs throughout the audience could be heard. When I see it today, it still is magic to me, because I let myself believe it is.
One of the issues is that younger folks are too used to high-tech stuff to appreciate the simple little effects that not too long ago were pretty amazing. We have seemingly lost our ability in modern times to suspend our disbelief, and use our imagination to enhance the entertainment experience.
Come on, folks, it's charming. Not every attraction has to be a thrill a second.
IMHO, part of what is gradually being lost at the parks is the culture of people believing in the Disney Magic, and letting their imagination run wild, instead of insisting on being spoon fed the illusions. This is not the fault of the patron, or a sign of the times. And I don't claim to have all the answers. But I believe that one of the focus areas of Disney Imagineering should be reversing this trend and getting that back.
Don't get me wrong - there is a lot of magic still there. And Imaneering does a really great job with theming overall. And that's what makes the parks and resorts special (to me at least). But how can we change the feeling that guests have when they enter the parks (and even at the resorts) to make that suspension of disbelief more prevalent for patrons of all ages?