It could be that my understanding of the way a trust works is wrong but typically the recipient of the funds doesn't have anything to say about how the money is managed. In a way this is like have holdings in a large mutual fund, stocks are traded constantly, you have little idea what the holdings of the fund are on any given day. By the line of reasoning being employed here it would be inadvisable for a Witness to be involved with any mutual fund because of the possibility that at any time they might hold stock in some company that was in a line of business that they disagreed with. This is really hair splitting and frankly a lot of nonsense, gnat straining and camel gulping. If this is the best you can do you might as well throw yourself under a bus now.
Now, if the Christian Congregation buys 100,000 shares of Phillip Morris for their own account then you've got something but this is foolishness on the line of requiring Witnesses to centrifuge meat so there's no blood in it.