If internet use is decreasing our memory, is it necessarily a bad thing?

Here's an article that been making the rounds this week. So internet use is dramatically reducing our internal memory (as opposed to our offloaded memory) and perhaps even shrinking our hippocampi. Should we look at this as an alarming new fact about life in the 21st century? Or should we think of this in evolutionary business as usual? Given that computers are here to stay, there's no reason to think computers and humans aren't going to co-evolve in the same way millions of other animals have co-evolved, except in this case computers aren't evolving through natural selection.