I have been thinking some time to try to understand what your point is.
I do not believe that his was some individual offer for a one time only situation. I thought that this was the standard rule that applied to everyone. Actually, I continue to believe so, but I edited my original post to remove the name and to clarify that this may not be the case. However, of course, your post still does name this person.
Now, as to what is "cool." What would not be cool would be for a "rule" to apply to one person and not to apply to another person. Frankly, I do not believe that is the case, and I believe that those cast members you are referring to would not be that unprofessional. For that reason, I am quite confident and comfortable in believing that I was told I could do would apply to every single other person who bought a ticket to go to the studios.
In other words, that IS the rule, that's why you and I were told the same thing. It wasn't a personal favor.
My point, if you will review, was that one did not need to be "sneaky" and take off wrist bands if they are giving them to their children. Rather, they can look a cast member in the eye and explain exactly what they are doing.
The "sneaky" comes from people taking off the wrist bands either because they do not think they can or because they are trying to go back through the line again without waiting two hours. There is no point in being "sneaky" in taking off the wrist bands if you are on the up and up, just say what you are doing and do it.
Now I will say this - and it completely negates the whole point. I had a stand by for a celebrity two weeks ago and got tired of waiting. As I was getting ready to leave there was a park guest who was asking about how to get in the line because his son really wanted an autograph. The cast member was explaining about the fast passes, and basically that this guy was shut out because he didn't know in advance to come early in the morning. So as I was going out I said here, you can have my standby. But the cm said, no, the wristbands. So I said "well can I forfeit him my wristband?" and the cm said no, not your child. So that, to me, is exactly opposite of the goal of trying to get more people a fast pass.