Going to say the same. It really matters because it lowers the boiling point of the fluid. If you live in a place with high humidity it's a very bad idea. It will work like this.
Nope, that's not right. It normally takes two ppl to bleed brakes. One pushes down on the pedal and holds it down, the other opens the bleed valve, then closes it. Repeat until all air is out of line. Move on to next wheel. There are ways to bleed with one person, but that's another story. What he's showing in this vid is a start, but it won't get all the air out.
This is not how you bleed brakes by yourself. There's a reason know one has heard of the gravity method. Put some hose over the bleeder valve, usually some fish tank air line, put that hose into a cup of brake fluid and pump away. It will blow out the air and suck up fluid. Common man, I was just starting to like you.
No, do it the easy and the right way get a vacuum line that runs from the caliper to the master cylinder opener master cylinder open your bleeder hook the hose to the bleeder and then put it in the master cylinder and then pump your brakes until you feel the pedal get firm stop close the bleeder and it’s bled. It’s called force bleeding it. With that handheld vacuum you will never get the air out of your system and your brakes will not be right.