Scale practicing

[FlorianFaber]

Hey guys,
right now I'm very into scale parcticing. I found a very good youtube video with a clever way to practice those.

GUITAR SCALES: How to practice guitar scales effectively – 10:35
— GuitarVersum Sandra Sherman

She tought it to play through all 12 keys in the order of the circle of fourth.
It seems logic to me but I'm not sure if this is the exact right way.

What do you guys think about it?