The idea behind patents is protecting the innovator. How does patent law protect anyone when it's trivial to argue a patent shouldn't have been granted in the first place (because it's not novel, or it's just math, blah blah)? You could say that about all patents ever filled.

It defeats the whole purpose behind patents. Whoever has the biggest patent pool and deepest pocket wins, not the little guy on the sweatshop. The only people to benefit from patents are lawyers.