The guy did not choose the weather well for refloating. Although the tide is great in the next few days the swell will be over 2 metres for about a fortnight. So bugger about that.
I am skeptical of the idea of using a trawler to tow the boat. The bollard pull of a 50ft trawler could be about 3 tonnes. This is nothing compared to what you can do with a system of anchors and pulleys led to the sheet winches.
I remember about a year ago there was a similar situation in Coffs. An old crappy steel 50ft yacht washed ashore and the guy had locals in the water pushing on the hull at high tide. A few lines led to large danforths and to winches could have pulled him clear.
I winched my 4000kg cat off a sandbank in a gale with a single danforth kedge and 100m of nylon. You gotta get the anchors out as soon as possible.
Maybe there is some inexperience or ineptitude that comes along with calling a block a "spring block" or thinking that it is important to fix the boom by going ashore at Byron (I mean what is on shore at Byron?) or buying an old steelie and having it so the boom breaks and not being able to sail along to Southport under genny alone. I once tried to help a guy who waterways were hassling at Wooli. His trimaran had ripped a hole in its bum. I tried assisting the owner until he said I was stressing him out and he needed to go back inside and take it easy. I don't think that ended well.
At least this Catalina was light enough to be lifted by a truck
www.facebook.com/watch/?v=1260942562061990