Well your red blood cells, some retina and renal cells, and most cancerous cells also either thrive (or at least do much better) on fermentation aka non-respiration..
Imagine if we created an organism that could live in the vacuum of space as comfortable as being on the surface of a planet. It would revolutionize our ideas of space exploration and colonization.
Also, I imagine there's some skepticism here. If they lived in a vacuum that means there was nothing else they could live off and they truly are eating electricity. We also live in the age of "viral scholarship" where a lot of shoddy science gets paraded around for status seeking universities and researchers. Remember how skeptics of the FTL claim from those Italians were shot down on these forums and reddit? Skeptics shouldn't be automatically punished. If anything, we need skepticism more than ever.
It would be revolutionary.