You have made some good points, aglorincz. I have been told over the years by people who seemed to think they knew a lot more about meditation than I do, "it is impossible to still your mind." My response was, "I do. Why can't you?"
When I told a Bhikkhu at Wat Promkunaram, Phoenix, AZ, USA, when I was on a retreat there that I could still my mind. He laughed in my face. But, then, I found the monks there could not even sit still in meditation for 5 minutes. And, the Wat has been implicated in heroine trafficking.
When I told Gunaratana that I could still my mind, while on retreat with him in Orange County, CA, USA, he crossed his arms, and leaned back in his chair and said, "You are so arrogant."
So, being a Buddhist monk sure does not mean you can still your mind. Stilling the mind is the 2nd jhana, and jhana is the definition of the 8th fold of the Noble Eightfold Path, so few Buddhist monks can get to the 2nd jhana, therefore few Buddhist monks are even practicing an 8 Fold Path.