We are rarely in that 100% 'trust in' or 'surrender to' position wrt the Guru... that is when, I understand, the total connection that transforms is made.
I am sure these processes help some people. But it's interesting to ask how many became genuinely, independently enlightened this way. Does anyone have uncontroversial examples?
The illustrious enlightened of whom I know (and indeed, some of these could be mythologized too to some extent), well, they didn't actually seem to become enlightened through guru-devotion at all, and did not teach it as a path: just a small handful: Patanjali, Buddha, Milarepa, the Six Patriarchs of Zen, Ramakrishna, Ramana Maharshi, Lahiri Mahasaya, Nisagardatta Maharaj, Lao Tzu etc. etc.
And yet there are millions of people being given the surrender-to-the-guru-to-become-enlighened story.
Well, how true is this story, and why aren't these guys teaching it?
My mom was a devout Catholic and had a great mythology about Marriage when she was younger. When you would listen to her talk, all problems with marriage not working out were the result of lack of commitment to it, and could be fixed by working on it according to the Mythology. When she grew older, she grew wiser. She had friends whom she respected whose marriages failed. She could see that they had no less commitment than she had, and had tried everything.
Likewise, people who believe the surrender-to-the-guru thing can say, if it didn't work out for you, that you didn't commit to it properly, that your surrender wasn't 100%. Their thought system will allow them to continue believing that surrender-to-the-guru works to produce enlighenment no matter how many times it fails to do so.
Food for thought......