And think of it this way, Proplog-
Did any super-miracle happen to get the word into say - Red China, Islam, Russia, etc. during the heyday? Not at all. They just picked up the easy fruit where they could of dis-established people here in the US, Free Europe, Mexico, and a few selected 3rd world countries. I didn't see any C.T.Russell types rise up in any of the hard places to preach within...if it had, then that would have been impressive. But it did not, and now they are in a stalemate with their own past teachings. And proclaiming the message work to be over with, to hear their latest rantings.
I don't see that as miraculous evidence of God's spirit. Plenty of other cults rose up in the US, (because of our tradition of religious tolerance), got an initial big growth due to a sacharin-promise message, and then went for all the money to be possibly made.
That's all the WTS ever was.