Tom-
There is no proposal to change the Code rule that I know of. It is simply my opinion that there should be one. There is no problem with uninusulated staples as long as they are installed carefully. My house was wired with them, as are many others in the US. However, I have seen many of them overdriven and also with 3 wires underneath them. The insulated staples add a little margin of safety.

Home improvement stores should just sell the stuff. They should not give out advice. I have no argument with you on that one. I have overheard the bad advice they have given to inexperienced people, so I completely agree with you. [Linked Image]

Peter