I think he's got a good point. Many people are happy to call themselves light workers or something similar but reticent when it comes to the actual inner changes which need to be done. I don't know about the 40% figure, but I can't say I have evidence that it is otherwise.

Like your teacher, this is an observation of human nature. I will be honest and say that yes, I don't always do the work. In fact, it's darn difficult to stay 'on message' lately, given personal difficulties. But... I am stubborn and do try!