i think we all know by now that managed isolation in a 1st world and 3rd world country - the result is the same. the virus jumps regardless.
To a degree, although I would trusts NZs more than most countries, especially as we have now learnt where holes could be. Australias MIQ now seems to be a lot better since their leak. I am guessing the trick is to make someone responsible if there is a leak.