Have to disagree with this reasoning. Throughout my childhood I was a crazy fan and it was my dream to play for this club I'd supported when I grew up.
Admittedly, I ended up at the club I came through the juniors, but my experience was basically at 16 my boyhood club was just another opposing team.
As far as family goes, there may be good natured barbs when you are playing their/your old supported club, but it becomes completely irrelevant; their support for their son (and as a result his team) is light years ahead of any their own son plays for regardless...
Watch any interview with a parent who has two sons on opposing teams. They'll never say they're going for one particular side.
As for Galvin, well, yes it's his career, but by the same token Parra didn't see anything in him where the tigers did. If not for WT it's possible he wouldn't be playing nrl. They've been pretty good to him and he is where he is because of them.
Would be disappointing to see him leave before really repaying the faith (with at least 3 good seasons), but again, it's his career and unfortunately he has that idiot Moses as manager.