They can only be a wedge because you are placing it there and trying to pound it in with a hammer. None of what you said would be discouraged by President Nelson's words. You seem to think that I, as a faithful Latter-day Saint, should not seek help in knowing what is wrong with my car, in knowing what classes my kids should take in college, what medicine I should take, who I should vote for, or what I should do if I am struggling with the loss of a loved one, unless I first ask those from whom I'm seeking direction whether or not they believe in the same things as I do. If I don't, I am betraying the words of President Nelson.
I'll give you an example of what is the intent of his words; If you are struggling with your faith and feel that your testimony has weakened, don't go to John Dehlin for help.
I'm pretty sure you understand this distinction, but you seem to want to pound wedges into places where none exist, just to stir the pot.