It's kind of like riding a cat and trying to tell him where to go. He either ends up stopping to clean his bollocks or he brings you into the litter box.
As a metaphor, it will get you to outerspace but you may miss your target. You don't actually need to guide it, there's so much thrust/traction that you'd have to be super talented and purposely trying to sabotage it for it to fail.
That being said, Snapchat has made some incredibly good decisions, new products and so forth.