But that is not even the point -- when facebook invokes the nullification clauses in the patent grant, you're simply back to no patent grant, at all. How is having a patent grant not strictly better?

No, I'm not happy with that, but that is also not what's happening here. You're still welcome to sue Facebook if you want, but you'd lose all patent licensed to you in the PATENT file.

I'm also not happy with spreading FUD. Bringing up non-software patent is a strawman.