He doesn't read the details hence he had one of the worst calls...

He doesn't read the details hence he had one of the worst calls in investment history, could not have been any more wrong, he actually called for lower earnings!

Ask yourself a few question about hedging like which currency should you hedge against?
Not the USD or JPY or GBP because we don't buy stuff from them, how about EUR?
Maybe but how much of our stock is bought from Europe?
We don't manufacture or have one set supplier from one region so why on gods green earth would we beholden to a currency hedge for our profit?
If the price goes up in one country find your product in another! If the AUD gets smashed against every currency in the entire world then why not buy at home?
No debt in foreign currency either!
If your still worried about hedging with TRS put your money in a managed fund or a business you understand well enough to not worry about

Hedging gets done when a supply deal gets done so you can set your buy price and guarantee it for a reasonable amount of time to ensure an appropriate margin for the life of the deal, when it is going to run out you do a new deal in a new currency and hedge that just like the first time(if the currency has moved substantially against you).

I actually think TRS shouldn't hedge at all as currency risk can be mitigated by good procurement procedures and it COSTS money to hedge!