After going back and looking at the list I think your right. I reckon the writer probably hasn't touched a Sega system in his life. He names Rez, Outrun, Daytona USA and Jet Set Radio Future. All of which aren't exclusive to a Sega system so I'm betting he probably played these games elsewhere. Wheres Sonic? Phantasy Star? Shinobi? Panzer Dragoon? NiGHTS? Shining Force? Not even a single Megadrive game made the list!
The guy was obviously a Nintendo kid growing up. Nothing wrong with that but hes in no position to have made this list.