Perhaps the IRC contains a provision that would force ARC fault protection for the example in your video but the NEC does not.
The extension of the circuit does not supply outlets installed in dwelling unit family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, or similar rooms or areas and therefor does not require ARC fault protection.
A new circuit to an outlet supplying a receptacle serving the exterior of a dwelling would not require ARC fault protection.
A new circuit for a yard light could require ARC fault protection if there is an outlet for a switch on the inside of the dwelling and located where it requires arc fault protection.
These are examples of receptacle covers that are listed for a wet location. In-use covers aren't required unless an attachment plug is always plugged in, such as for a tank-less water heater or a timer for yard sprinklers etc.
The "bumped your head" remark has to do with you selling your expertise.
First of all, I am somewhat dumbfounded that you have been given free reign to do that here at this forum. The association with this forum lends credence to your abilities that may not be warranted but that is up to Jeff Remas.
My second thought is, just how sharp is this guy if he didn't see it coming. That's why I said you shouldn't mention bumping your head. If you want folks to pay to hear your opinions, you need to maintain the aura of the Wizard. That's not to say that you are actually, factually a dufus. It's just better to avoid looking like one given what you are trying to do.
Me? Well I'm free to be the village idiot because I don't want their money.
Again I say that your code may be different from mine and in any event, you are free to interpret the code as you see fit.
I am only telling you how we do it here.
I am not telling anyone how they should do it there.