I absolutely agree that people do just that. I would add my view, though, that this is precisely why people do not realize the unique value of the guru. They look for words and behavior while the guru offers transmission. Inevitably, such people walk away from gurus embittered or disappointed because the guru doesn't live up to their expectations.
Gurus do and say inexplicable things.
But it is the rare disciple that can remain focused on what the guru is, rather than what the guru says or does. Those who walk away shaking their heads may feel justifiably angry or indignant, but that doesn't add up to realization. Regarding your link to the article Experiences with famous Gurus and a previous letter commenting on it, I thought I'd send this one as a sort of counterpoint, a balance. In my opinion, what we really need are gurus who are also willing to be saints. Like it or not, people look up to the guru as an example of how to behave.