Warren,
Are you saying that the WTS no longer claims that taking a blood transfusion is the same as eating blood?
The last time they claimed the two were exactly the same was in the late 60's. From that point forward, this was reduced to only a claim of similarity. And even this claim was made indirectly via false analogies (Comparing blood to other substances like alcohol) and outright equivocation. (Refering to the both the eating of blood and the transfusion of blood as "Taking in blood.")
At the same time, the "Abstain" argument came to the forefront (e.g. Accepting a transfusion is not "Abstaining from blood.")
Here are some fairly recent examples:
"Because we listen to God when he says to ‘abstain from blood,’ we do not allow blood to be transfused into our bodies." [W97 1/15 p. 21]
"Jehovah’s Witnesses take seriously the Bible’s command to ‘abstain from blood’ and therefore refuse blood transfusions." [W90 5/15 p. 23]
"Jehovah’s Witnesses decline blood transfusions for religious reasons. ‘Abstain from blood,’ the Bible commands [W80 10/15 p. 21]
(NWT's prior to 1971 didn't even render Acts 15:29 with the word "Abstain," they captured the infinitive a little better (IMHO) through the rendering, "To be keeping yourselves free from..."
In the second edition of Jehovah's Witnesses Defended, Greg Stafford acknowledged the grammatical problem with the "Abstain" argument. Intelligent JW's today, usually invoke the "Use" argument (e.g. Man is not permitted to "Use" blood.) and the JW parent organization seems to be following suit.