And other people continue to say it's true. Why would Disney not fix it if doing so would be easy? The premise that this would be an easy fix makes no logical sense, and it is equally illogical to believe that a successful company would intentionally fail to undertake minimal repairs to a fundamentally cool part of its headline attraction. No steam, no bird, no waterfalls--these are minimal, and few people truly care if these aren't working. But a disco yeti is majorly disappointing. Right or wrong, the notion that a major shutdown would be required makes the most sense, and what this former CM told me adds a critical piece to the puzzle.
Choose to believe it or not.
By the way, the former CM also said that they are not attached, but a weak foundation for the yeti could nevertheless cause stresses to the track simply because they are both standing on ground that is close by. Try working in an office next a construction site. You'll find rolling chairs, falling paintings, shaking computer screens, rattling windows, etc . . . Similarly, an off kilter yeti could easily affect a nearby roller coaster track sufficiently to set off those sensitive sensors and/or disrupt the track beyond Disney's nth degree safety standards.
Again, this all makes the most sense to me. Feel free to believe it or not.