How about no.
But seriously, predetermined decks just seem like a better idea since you know what you are getting into IMO. Everybody needs a basic set of usable cards for a deck before they can even start playing, and if your first cards are random, you may have a chance of getting a pure shit group of cards that can almost be unplayable.
Even if there was a chance of getting a god booster, I still don't think its worth the risk of having to make an entirely new account or something just so you can actually play. Plus this could be abused in the same way. Just make new accounts for free boosters. Nope, starter decks seem like the way to go.
Though if you want that kind of randomness, there are tomes. :|