The LDS Church hires professional help in crafting it's teachings and speeches and general public image today. Madison Avenue advertising folks. Then they have some committees staffed by their own professionals. . . degreed sociologists, psychologists, social scientists of all kinds.
They also have secretaries or clerks who read all the mail and file reports highlighting current issues per the mail/email from the public as well as local leaderships. . . . All this goes into the hopper, so to speak.
Leaders chosen to give speeches in conference are notified well in advance so they can submit their proposed remarks to the committees, who go over them analytically looking for problematical ideas or phrases, and edit them out. Sometimes the committees completely rewrite parts of these speeches and sorta tell the GA what he can/must say.
The "themes" are carefully selected and crafted, and not "accidental" by any means, rest assured.
The LDS Church has learned to do a lot better than the Holy Ghost.
Very conspiracy theory of you babe.
My first thought when I read this was Elder Wirthlin when he couldn't see well enough to read a prepared talk. He just got up there and spoke and it was no big deal.
I believe the speakers to try to prepare ahead of time, and send the talk to someone for faster access to get it online, and in print. This whole committee idea of changing peoples talks is bogus. There are many things in the church that are organized, planned and thought out but not what you are presenting.