Agree with all that Wouter. Very few Taipans were ever built wider in AUS and installed self tackers. So those who tried sailing with kites had the clutter of an overlapping jib on a small tramp and all the kite gear as well. Hard to keep tidy and fast. The extra width also helps get the kite power in use as well. The AUS Taipan sailors already had a strong class fleet to sail in, so it didn't make sense to modifiy their boats with no real numbers to compete with in an F16. The Taipans OS had a clean sheet to start with and built a better Taipan for kites.
One observation on the goals issue - the less serious sailors in this country tend to buy $1K to $2k dungers. It's only the hard core racers prepared to shell out 20K+AUD on a beachcat. It may be different elsewhere but here if we've got an expensive shiny racing cat we race it! Mind you, we've been known to have a barbie after and a rum or three.

Cheers