No Clay, the worms didn't change the texture or flavour, however I have heard of the odd kingie fillets turning mushie, but it seemed quite rare.
The only place I've heard it happening was off the Tweed and points north, never from the NSW south coast, of course I can't be 100% sure.
I really don't think worms in the flesh of fish is a big deal, normal part of nature.
Not to metion that at some point in our lives we've all had worms in our digestive systems LOL.
cheers roz.