Even if we assume that to be true, the fourth of those statements still sucks. No free software license denies use to people who have the wrong political views. If you manage to get software patents outlawed in one jurisdiction, your patent license expires in all other jurisdictions. Imagine how much the FSF would love to have a clause saying, if you weaken the GPL in court, your license to use any GPL software expires... but they don't.
And even if we assume that to be true and assume that both parties believe in patents want a robust, well-functioning software patent system, that clause still sucks. If Facebook and I both invent something at roughly the same time and apply for patents, and the Patent Office misreads our applications and grants them both, and I point this out to them and I had priority (thereby invalidating some of Facebook's claims), Facebook gets to terminate all my patent licenses.
And even if we assume that to be true and assume that both parties believe in patents want a robust, well-functioning software patent system, that clause still sucks. If Facebook and I both invent something at roughly the same time and apply for patents, and the Patent Office misreads our applications and grants them both, and I point this out to them and I had priority (thereby invalidating some of Facebook's claims), Facebook gets to terminate all my patent licenses.