I've felt that the Sex Pistols have been long overhyped as a punk group. Their very formation resulted from manager Malcolm McLaren getting involved, which comes off as against the DIY understanding of punk music.
I understand that for many people starting to get into punk music, the Sex Pistols may come off as a gateway band, not unlike the Ramones or the Clash. That notion has some merit, given how tuneful the band's song construction can be. Steve Jones came up with some catchy guitar riffs, while Glen Matlock, Sid Vicious, and Paul Cook were competent in the rhythm section. There is a backbone to this album.
But that brings us to Johnny Rotten. McLaren picked Johnny as the vocalist for the group simply because he looked like trash, which was the image he had in mind for the group. Well, he didn't just look the part; he is trash. Johnny is such an irritable vocalist. There have been far better vocalists out there who can better snarl and have actual conviction than Johnny ever could.
As for the lyrics, most songs tend to be pretty generic and try to be shocking or provoking for the time, and yes that includes the likes of the singles "Holidays in the Sun", "Anarchy in the U.K.", "God Save the Queen" and "Pretty Vacant." The one exception to this is track two "Bodies", which is an anti-abortion song that is absolutely disgusting. Hearing lines like "Dragged on a table in a factory" and "Throbbing squirm/Gurgling bloody mess" in the song's context makes my stomach churn, and I've listened to grindcore.
I get why this album was included on the list. I also get why it can be considered influential. But holy shit, it's not good. Check out the singles if you are curious, but that's the best I can offer.