Uh, I helped my Dad build a house. I have a plumber working on my building right now. I have represented both builders and customers many times over the years. I own three buildings that have been remodeled and maintained for decades. Let's logic this out:
1. A very expensive headline yeti was installed years ago in EE.
2. It quit working somehow about a year in.
3. Allegedly it was removed and reinstalled shortly thereafter, although I am not truly convinced that that happened.
4. The purported removal and re-install did not apparently close down the ride.
5. B mode is disappointing, and surely a better band aid like a projection could have been installed at some point in the past 9 years.
6. That band aid fix would surely have been easier and doable if the yeti was removed.
7. The installation of a better band aid would likely not have closed down the ride.
8. The yeti is probably Disney's biggest embarrassment over the last decade.
9. Finally, Disney is now trying to make a better band aid.
10. Departmental finger-pointing is the alleged cause of the 9 year paralysis.
Given all that, I maintain that removal of the beast, which few people actually see in disco mode, is both difficult and expensive. Even if they took it out years ago, I assume that that attempt to repair the problem was expensive. It didn't work, so why not remove the thing (if it's easy to do) and put up a projection against a hairy mannequin? The answer: It is probably difficult and expensive.
Note: My conclusion of difficult and expensive does not mean that a big door is not hidden in the back. It does not foreclose the notion that they removed it years ago. It does not mean that the yeti is necessarily unremoveable. My conclusion is based on pure logic given the facts before us, both absolutely known facts and those facts which are perhaps known.