>>>First of all...I believe I stated "apart from the structure...and talking JUST facades<<<
No, you pretty much shifted gears in the same sentence without giving any warning of doing so, now that I see what you were trying to say.
>>>Next...it is not true for "ANY construction project" (that's what "joints" are for...to take into account for "error"...and...have you ever seen a building where the steel and floor slabs are exactly within 1/32" of the original contract drawings?) (that's what "tolerances" are for)<<<
That's all true, but the point I am trying to make is that for all of the challenges that are being tackled for Mission Space as far as structural integrity goes, the three ToTs had to face them too, as well as many others* (it's really going to be interesting in twenty-five years to see how tall the Tower of Terror will be in DisneySea, because they have a major problem with sinking soil there. Cinderella Castle has already lost a few inches over the years because of the fact that it was built in a landfill).
* That didn't really come out right either, since you also kind of made that point in your posts. But still, a facade attached to a warehouse is NOTHING compared to a structure like the Tower of Terror or Splash Mountain (at WDW), but of which went up in shorter time frames than Mission Space.