The advertisement draws mostly on an appeal to pathos. All three child actors are adorable, and the Rube Golberg is really fun and fascinating to watch. Also, the whole idea that the product will get more girls interested in the STEM fields is a very good angle to pitch, since there is still a gender gap in those fields. Parents will be more inclined to buy the product because they believe that GoldieBlox will make their daughter more interested in such areas.
This ad is certainly effective in addressing its target audience, parents with daughters and making parents think they are "empowering" their children. However, I also noticed that the product itself has very little to do with the Rube Goldberg. Even after the ad, I was not sure what was inside the GoldieBlox box, and this can come off as a little misleading. Furthermore, when inspected closer the product itself seems to be little more than some pink gizmos, not at all the same quality as Legos, or other similar toys that girls can enjoy just as much as boys. The song itself, chanting about female empowerment, just seems like a marketing ploy.
Although GoldieBlox plays up an effective angle, upon closer inspection the advertisement just seems more about the glamour than the actual product.