The article made the claim that 70% of space is wasted "dark bytes". The article should prove the claim, which it did not. It's an extraordinary claim that really requires more evidence than just an off-hand napkin calculation and talk about mysterious "dark bytes".
It takes very little time to write up something that's wrong.
It takes much more time to write a detailed rebuttal.
What you're doing here is pretty much the same trick quacks, young-earth creationists, and purveyors of all sorts of pseudo-scientific claims pull whenever they're challenged. Any fool can claim the earth is 6,000 years old. Proving that it's actually several billions years old requires deep insight in multiple branches of science. People stopped doing this after a while as it's so much effort and pointless as they're not listening anyway, so now they pull the "aha, you didn't falsify my claim about this or that bullshit I pulled out of my ass therefore I am right" zinger and think they look Very Smart And Scientific™.
But that's not how it works.
Also just outright disbelieving people like this is rather rude. You're coming off really badly here and your comment has the strong implication that Russ is outright lying. Yikes!