Sadly, I can confirm that this is true in practice.
I had been married for less than two years when my (now ex) husband had a meeting with the elders.
He did not tell me why he was called into the back room, but subsequently had his 'privileges' removed for about one year.
Because my husband refused to discuss the matter with me and I had no idea what had occurred, I asked an elder who was aware of the facts if he would let me know what had happened. His reply was that the matter was confidential and I should wait for an appropriate time to speak to my husband about it.
Predictably, there was no appropriate time and my husband never told me the reason for his removal of privileges.
It was only after I had left him, more than 15 years later, that a male friend got in touch with me and revealed that my husband had propositioned him as well as performing a sexual act in front of him.
I won't go into the details of my ex's behavior over the years, but had I been aware of this in the early years of my marriage, it would have helped immensely in deciding whether to remain loyal or leave before the situation became more difficult.
Elders, by obeying ridiculous and archaic rules, have been instrumental in adding to the misery and pain in many lives.