Too late for what? To get the 5%? Rates there will hang tough for a while yet, so you'll be fine.
The question is what cash you're going to park there. If you're parking dollars there, you'll have to convert to AUD or NZD in order to store it there. And at these multi decade high exchange rates, the risk is a dollar correction will wipe out any measly 5% gain you'll get with it.