I think the point here is not "knowing how to use memristors". Sure, it is possible to use them simply as another type of non-volatile memory. But it's the same as having an airplane and driving it on the road.

Memristors, the way they are hyped, promise to be orders of magnitude smaller, faster, cheaper AND less energy consuming than all of the other memories that exist. All at the same time. If time proves this all to be true, it can bring really groundbreaking changes to computing. And we all will be able to watch more funny cat videos, at a greater resolution.