I'm also confused how this is some sort of hedge. But I find these "use theta" to your advantage statements some sort of blanket statements that make absolutely no sense on its own.
In the end scheme of things, the PRICE is what matters. Or you'd be an idiot to take the long side if 'using time to your advantage' truly had some mystical properties.
Taleb & Paul Tudor Jones cashed out generation wealth during Black Monday using different techniques.
In the first, Taleb had no idea when the next crash was to occur. However, he continued to drive his STEAM-ROLLER around the floor and waited for those 'THETA' boys to dance around trying to pick up nickles infront of his steamroller. Though in this case, Taleb kept tossing down pennies instead of nickels as he accumulated far out of the money options at very cheap discounts. With confidence high, traders couldn't resist at that time, especially in the forex markets.
Down in the futures trading pits, Paul Tudor Jones had his boys short the shit out of the markets, as in this case he 'knew' the crash was coming as he saw the same signs from past history emerge. No one laughed at him, only because he did it in secrecy. In fact, he paid his boys to mix (bogus) long buys with his short positions in order to mask the large short-positions he was accumulating. Paul also does not set active stop-losses as a failsafe to prevent competition from reading his moves and shaking him out.
You won't time it like Tudor Jones, but you can certainly hedge like Taleb when the premiums are cheap enough....