I don't see any specialty pieces in there that I would be unable to use in another build. The problem is that the ratio of specialty pieces to generic pieces i

I don't see any specialty pieces in there that I would be unable to use in another build. The problem is that the ratio of specialty pieces to generic pieces is too high; you would need a lot of generic rectangular bricks to build anything substantially different from what's in the picture. I wonder how much the ratio of specialty to generic pieces differs between the lego junior sets like the one you linked vs sets intended for older children.