The answer has already been given, check out the website JW.org.
I doubt if you would get an accurate answer from Vulcan. He thinks he knows, but in actual fact he knows absolutely nothing.
There has been no change in the thinking on blood by JW regardless of what has been said. As medical science advances, then so does the need for advancement in medical practices. Doctors themselves now know that blood is dangerous medicine and various procedures have been implimented that reduce bleeding during major operations.
As to eating meat. JWs only eat meat that has been bled correctly, certainly we would not eat meat that has not been killed in a manner that all blood is drained.
Also today, even though the word “interfaith” is not in the Bible, true Christians are found following Christian principles and are not in the interfaith movements, ministerial alliances or compromising church councils. We will not take any part in the conglomeration of divided false religions now so popular in this world. Why not? Because we reason on Bible principles and understand the position of a Christian in this world. As Christians we must keep clean and never compromise God’s righteous principles for the sake of being looked on with favor by this world.