He also seems to be mistaken where the jacking points are. That (2:50~3:05) is NOT a jacking point! That's exactly the spot someone's done that to my car, and that section is now all crushed in and the under-seal is damaged back to metal.
He needs to read the workshop manual on how to jack the car before trusting his assumptions.
A twist-beam suspension seems new to him too. It has always been a very common set-up on European 'superminis'. Saab started using it in the 60's. Not news.