To quibble with some of the quibbles, the list is described as 100 Riffs (A Brief History of Rock N’ Roll), then in the text as 100 famous riffs. No claim to have selected the best or most important. So anything important and recognizable is fair game, and anything he leaves out is OK too.
That is an amazing feat of playing. The detunes and retunes were impressive, and the second time he switched to slide, when he fretted a note on the low E with his right hand while he picked up his slide with his left, was really cool, both in idea and execution.
There were a few things where the tone was so off that it bothered me (Black Magic Woman and Fortunate Son leap to mind), but I was more focused on notes and technique than tone. I figured on Fortunate son he may have stepped on the wrong pedal and thought “screw it, I’m plowing ahead”.
Aside from the tuning and slide switches, I was particularly impressed with his excution of Van Halen tapping and the Cliffs of Dover riff in the midst of everything else he was doing, pretty tough riffs and transitions.