The narrator skips over an important point when it comes to digging root balls. They are commonly 5 to 15ft down. In the south that means red clay. Ever dig a grave by hand in alabama? I have... it's no fun, takes a crew of guys half a day to dig 6ft down in red clay. F* trying to dig kudzu!!!! There's a reason it's 8 times the price of corn starch... 8 times the cost in digging it up! Unless you're in China and have very cheap labor.
He did get another point correct.... don't plant kudzu. You don't want it on your land!!! It'll kill everything else. I mean everything, from trees down to grass. And once started it's difficult to eradicate. Sprays are expensive.
However, relief finally showed up at Atlanta's Hartsfield airport about a decade ago. A beetle hitched a ride on an airplane from asia that is kudzu's only natural predator. Hartsfield used to be surrounded by kudzu. No more, it's mostly dead. This little beetle is keeping it under control.