Considering how 'complex' this tour was it would have been nice for the Cambridges to address important issues like this one (especially since it was a topic that Diana spoke on a lot). Instead of taking 4 helicopters to a remote glacier to warn us about climate change. Or the constant talk about how they were dressed.
https://www.msn.com/en-us/news/worl...dren-test-positive-for-hiv/ar-AAJnrSK?ocid=st
The point of the tour was to foster good will, not create a diplomatic incident.
It wasn't their place to speak about something like this, important though it is.
It would probably have been regarded as an insult by the government.