Perhaps he, sorry I, thought when you said "I was at the spit today at 6 am spinning of the rocks watching a trawler at the entrance to the seaway gathering the mullet schools up" you were actually referring to seeing a trawler catching mullet in the seaway. That sounds very dubious. Did you actually mean it was a crew fishing with a seine net from the beach?
Note that I never said "netting of mullet didn't happen" - I said "You've got to be kidding. Does anyone still really believe that a trawler would be gathering up schools of mullet?"
I realise there is a significant commercial fishery for sea mullet in Queensland, inside "estuaries" using gill, tunnel and seine nets, and along the ocean beaches using seine nets.