"I say! Don't you realise that we're SAILING!"
Tonto is right of course - while the fishing boat was obviously in the wrong, it was fairly clear that, like Missus T, it wasn't for turning. The skipper of the SV was tooting like a good one for long enough and most likely could have done something to avoid the collision - I didn't SEE much evidence of that. Sail or no, who would "insist" a trawler stop trawling while they pootle in front of it? If the sailing skipper had been keeping a good watch, it would have been fairly clear that a collision was a possibility. If the VHF didn't get the trawler's attention then it was time to come up with Plan B - and I wouldn't call tooting a Plan B
Let's face it, this "accident" happened at 8 knots - there would have been time to consider the options.