This whole blood doctrine thing has got me so confused, but I think I've got it narrowed down to this:
The WTS is trying to get away from the blood doctrine or at least make it less of a doctrinal point than it has been over the years. The WTS now allows fractions, which, if I understand correctly, modern medicine uses fractions more than whole blood anyway. So, what's the big deal, right?
Well, they can't just come out and say, "New light, ya'll. God said blood ain't as big a deal as we thought. It's up to each individual conscience to decide". If they did that, then they would be opening up themselves to lawsuits. So, it's new light, but it isn't new light, it's a clarification of old light, or sumthin like that. The fact that the whole blood doctrine is so confusing shows that the lawyers are writing this crap. They've worded it so that the average dub doesn't know that in actuality the doctrine has changed and is constantly changing and is not the end all be all of JW teachings anymore.
At the same time, the GB, or whoever's running things now, doesn't want to lose face to the dubs by admitting a mistake or misconception. They also don't want to lose control by allowing dubs too much freedom in choosing medical services related to blood. So even though the WTS has made most of the blood doctrine a "conscience matter" they still load the WT articles with wording that tries to subliminally convince dubs to not take blood, not because the WTS told them it was wrong but because their "christian conscience" told them to. This way the dubs don't realize that the WTS is abandoning the blood doctrine(over time), lawsuits won't be levied against the WTS and dubs will still, for the time being, remain loyal to the borg and refuse whole blood and some of them will refuse even the allowed fractions.
God sure does work in mysterious ways.