It took me seven years to extract my MS/Reg Pio mind from the indoctrination but it started with a tiny seed.
We shouldn't dismiss out of hand the consequences that can result from introducing even just one element of doubt into somebody's mind.
Receive enough of these for long enough and who knows what might happen. It certainly worked for me! My waking up to the TTAT came from the accumulation of a long series of doubts, rather than one spectacular "Road to Damascus" type of experience. ( And by the sound of things, Farmer Jim 1 experienced something similar).
A certain old expression "The Ordinary rather than The Spectacular" comes very much to mind here!