Fwiw, there is an untrue statement in the article:
"With 1969 LEGO elements the 21309 NASA Apollo Saturn V rockets its way into LEGO Ideas history as the tallest LEGO Ideas set, as well as the one containing most elements."
The last part is incorrect, the Lego set with the most pieces was Taj Mahal with 5922 pieces, way more than this: http://lego.wikia.com/wiki/10189_Taj_Mahal
Edit: I misread that, thanks for the clarification.