Actually, it said that a "C" candidate was just as good as an "A" candidate if facing an "F" candidate. In other words, no reason for congresscritters not to stab gun owners in the back.
A better approach is to be willing to accept some short-term lumps and make clear that the NRA won't go very strongly to bad for mediocre candidates, no matter who they're facing. That way, the presently-mediocre candidates would have an incentive to improve themselves in the eyes of the NRA.
And you might as well stop comparing the GOA to any gun group. They have NEVER accomplished ANYTHING by themselves. They are completely useless.
At least they let me know about the Lautenberg Abomination before it passed. That's a lot more than the NRA did.