Well just to throw in my .02, I think the article was totally "fair and balanced". Bagwell made the same point that there are plenty of lakes where other fish are stocked to essentially "feed the Bass". And as far as I could tell he seemed to say that wherever the WRB came from was fine with him.
I have one additional thought. I don't think Ca bass get so big solely because they are fed trout. Its part of the reason, but another big part is the temperate Ca weather that brought many of us here in the first place. I have fished for and seen a fair number of 10+ bass both in Fla and here in Ca, and those Fla bass are really lanky compared to Ca bass. The reason is the growing season. Bass are cold blooded so their metabolism goes up and down with the temp. That in turn affects how they metablolize their food. If its cool the food goes to body mass. If its hot the food goes to metabolic energy. In Fla and to some degree Texas the water temps can climb into the 90's in the summer causing the bass to burn off lots of weight. Conversely in Ca the water stays below 75 almost all year yet it rarely drops below 45 to 50 in the winter. So the bass stay active enough to feed and put on pounds nearly all year. So without our Ca weather you could feed them anything you want and they still wouldn't reach Ca size.