Agreed. Its no loophole. Some people can not think, and will probably never grasp this concept. The cant figure how, "EENS" (No salvation outside the Church) could ever coexist with 'invincible ignorance'. They don't realized whoever is saved, is saved via the Graces the Church pours forth into our world.
Apart from that, I don't spend much time on this subject, as its a matter which is beyond most of us (laity) and causes much confusion. A future council will clarify this I pray.