Reading that, I don't see anything about the copyright holder being able to manually terminate a license. Rather the copyright holder can notify a party that is violating other sections of the GPL3, and then the party can either remedy those violations or lose their license to use the software.

Is ChessBase violating the GPL3?

EDIT: oh, I should read the article. They are saying ChessBase modified the GPL software then redistributed it without the original attribution or copyright.