I can tell you that as he left from, and landed near Perth, there has been heaps of publicity here.
It is astonishing that anyone in a balloon, trapped to some extent in the whims of the wind, can depart, fly 40,000km's over nearly 2 weeks, and return close to the start point. The 'miss distance' as a % of the distance flown is an inner bull and amazing.
The comment about slowing down: will those more expert explain that; is it a case of descending out of strong winds? But that might alter the track as well. What's the secret?