Your point was still moot. Buffett is in the investment and insurance business, not interested in trading. hahaha
Also it does help if you actually watch the video what you link to. Here, I help you out:
http://news.morningstar.com/articlenet/article.aspx?id=285699
"his strategy is twofold. First, he sells overvalued options by writing puts with very long horizons of more than 15 years, which are systematically overpriced. Second, he is making a classic Warren Buffett move, using the "float," or premium, from the options to invest. Because the options he has written are "European," which means they can only be exercised at expiration, he won't need to worry about having to pay out the notional value before expiration. All in all, this is just the type of elegant option-investing strategy to expect from a brilliant investor with a giant pool of capital.
Buffett's strategy has collected a $4.9 billion option premium so far on his $37.1 billion notional index options, but the Black-Scholes model
currently estimates a $10 billion liability, so currently he has a $5.1 billion loss on a generally accepted accounting principles basis. However, on a fundamental basis, as he says, "It's only the price on the final day that counts.""