At best, that means that trying to do the right thing counts if you're ignorant of Christianity. Most people aren't ignorant of Christianity, and rampant proselytization makes things much worse since with more people who have heard of Christianity, fewer can use that escape clause.

In fact, it doesn't just apply to knowing Christianity's existence. The more you understand Christianity, according to that, the more you have to do to be saved.

And even then, it has loopholes you can drive a truck through. "Can be saved", not "will be saved"--it's entirely consistent with that statement for God not to save anyone.