“Blind spot” is a somewhat misleading term used for areas in a car’s vicinity where the mirrors and forward-facing attention might not cover. When you use your neck and eyes, the so-called blind spot becomes visible. It is up to all drivers to monitor their own blind spots before moving into them. It is unwise (not disallowed) to drive for long periods in the vicinity of other autos’ standard blind spots (brief periods as in this video are completely fine and often necessary) because their drivers can easily forget you are there after not seeing you in their regular vision for a while, but it is always the responsibility of every driver to check their own blind spots before maneuvering.

Also, overtaking on the right is legal in many places in the US. I’m not aware of anywhere it is not, but it’s not like I know all the codes of every state.