A sufficient cross-branching of anti-patent-suit free software licenses would tend to make patent cases very, very difficult to pull off.
If the revocation clause were broader, say, invoked for any patent suit against any contributor or user of the software, even better. That might fall afoul of antitrust or similar type restrictions, a not-uncommon problem with patent pooling type measures from what I've read and been told over the years.
If the revocation clause were broader, say, invoked for any patent suit against any contributor or user of the software, even better. That might fall afoul of antitrust or similar type restrictions, a not-uncommon problem with patent pooling type measures from what I've read and been told over the years.