The photo was commenting on the wealth disparity, not the size. Ironically, the photographer probably didn't know that Amazon wouldn't build a building that tall unless there are 3+ floors and millions? of dollars of robotics equipment (the Roombas
SeanDoe1z1 referenced) packed inside there
(Personally, that situation (given the American car brands, assuming Mexico somewhere) looks like a loss prevention nightmare. I can't help but notice the complete lack of doors on that building, compared to the site photo (GEG1 in Spokane?) Sean has - I imagine the Mexico layout only has a handful of entrance / exit points, under guard at all times?)
As far as the partial number of floors, there are two factors:
1) Those robotics floors aren't full sized floors (I believe) - they are only tall enough to hold those fabric shelves plus fire control pipes.
2) Conveyors from those various floors have to meet up at some point, and that interchange takes more than a floor.
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