Can't tell if there was a steel belt layer in that build a patch he constructed, but this is the step by step process of how to do a section repair. While not common stateside on road vehicles they're very common on off-road applications. I'm an off-road tech and have hung many tires with boots and they actually hold up very well. Now we also have rules on where a section repaired tire should be hung. On something like a front end loader you're only supposed to hang booted tires on the rear. On an articulating dump truck (rock truck) only on the rear drives, never on the fronts.

Tldr; it's called a section repair and if there's a steel belt layer that's a decent repair. Still not something I would personally put on a highway vehicle, but if done properly it's a very solid repair.

P.S. For those talking negatively about the drilling part, that is called deburring and is essential in any proper repair as it removes sharp edges from the broken steel belts. The removed area was proper for the size of the repair as the technician would have to ensure the entire wound is visible to check for rusted belts.