Whilst I'm sure this is useful technology, underplaying the risks like that is not respectful to your audience. Paragraphs like:
But wait, you say, you’re afraid of what these viruses might do if unleashed on the world. Can’t they mutate into a terrible disease? Might they stop building batteries and start building weapons of mass destruction? Couldn’t these little electronic-minded viruses one day develop into gasp* Decepticons™?*
...are stupid and seem to disregard 50 years of science fiction authors thinking about this problem. No, Mr Saenz, that's not the main worry with these - the main worry is that eventually a virus of this kind might mutate into a "gray goo" plague. If you don't know what that is, you have no business writing articles on a site called "singularity hub".
Let’s get the facts straight. These viruses are bacteriaphages, meaning they hunt down and eat bacteria, not humans.
That's deeply worrying. Bacteria and humans are not all that different, and the human body harbours large quantities of friendly and essential bacteria.
In short, there’s no reason to be afraid of these engineered viruses, they just want to build you batteries. Won’t you let them try?
Well, that really depends on which bacteria they want to make batteries out of. My bacteria? Buzz off.
Now, I'm sure the scientists behind these are aware of this risk and are taking every reasonable precaution, so this is not an attack on the technology itself - just on this badly written article.