Hi!
I'm also from Aus :) Annoying that we're behind isn't it?
As i understood it, David Kelley didn't stop the show, the network did. ABC canceled a whole bunch of shows earlier this year, as they weren't doing well in the ratings. Boston Legal had never been a good performer in this regard, which is sad since it's such a brilliant and witty show. This was my understanding of what happened but there are other sources that say Kelley stopped the show. あなた may be interested in 読書 this:
link Hope this helps!