I used to be a cast member at EE, and trust me when I say...this is no simple fix. While it kills me to see the Yeti in such a dissaray (trust me...it took more of a toll on someone who had to see it EVERY day, and hear about it EVERY day from guests), there is absolutely no reason to take the ride down for extended period of time right now. It is one of the best attractions in Walt Disney World (cause let's face it...Disneyland will always kick WDW's behind) and one of two anchors in DAK. Courtesy comes before show, and its most definitely not in the best interest of the MAJORITY of the guests to take down the attraction at this point and time.
All of you whining and moaning about the Yeti being a symbolism of what's going on with Disney today...I totally agree with you...but only at WDW. Disneyland is still looking great, and Cars Land is going to be a-mazing. I know it sucks to see one of WDW's most beloved attractions being taken down a notch, but until DAK gets some more E-Tickets it can not afford to close EE.
As for those saying DAK is not worth it sans EE and this and that need to realize why some of us LOVE DAK...It's a Walt park. It's completey immersive and well themed (minus Chester and Hester). There's so much attention to detail and intricacy woven into DAK. The only reason I will be going to FL in October for vacation is to see friends and see the new HM stuff. If I had to choose between based on nothing but parks, I would go to Disneyland (even though I just went in July) cause it will always exceed WDW for me personally.