I have to mention that I'm not an analyst and don't pretend to be one. You may very well have a good argument.
My purpose here is to show immigrants that they have more than the “bank” option when it comes to making a choice regarding their investments. Immigration NZ has set certain guidelines for investment category visas. Applicants have to invest in New Zealand – so discussing the Nasdaq returns is a moot point. What they invest in can have a huge affect on their finances though.
That is why I’m here – to help them make the right choice for them – not the right choice for the bank (and of course to have the opportunity to manage those funds for the duration).