It was interesting, but lots of it were factually incorrect. Some random thoughts.
1. More than just 3 players in 3D. Matrox and S3 were very much into the high end 3D business in 1998. They exited about a year later or more later.
2. Coppermine 700 was way more than what was available for Voodoo2 SLI at the time. Realistically, we'd be looking a a P2-450. However, it takes about a Coppermine/Athlon 700 to not be CPU bound at lower resolutions.
3. 3dfx went for brute speed up until Voodoo 3. For their VSA-100, one could argue their pursuit of higher image quality led to their downfall.
4. Most PCI modems were soft modems. So a hardcore gamer would likely use an ISA one, such as a USR Sportster.
Edit: He also said Voodoo2 SLI wasn't surpassed until GeForce 256. That's false. TNT2 vanilla, Matrox G400, and ATI Rage 128 was on par with it for the most part. And voodoo3-2000 (the lowest tier) was regarded to be as fast as a voodoo2-sli.