.... There is already a well-established protocol for such behavior. It involves tailgating, 5-25 second bursts of the horn, and (if the weather is warm enough) shouting out the window and some emphatic hand-gestures
Unfortunately, this already well-established protocol has an equally well-known and well-established propensity to induce emphatic hand-gestures, stubbornness, bellicosity and road rage in the receivers of these behavioral protocols.
This is neither bad usage, nor is it slang. It is a particular word from the specialized business vocabulary. As such it makes sense used between people who share the same occupation as they discuss work. "Compute" used in noun form as a contraction of "computing capacity" appears to be one of these words for use by those involved in the specialized business of cloud computing.
Perhaps it was a bad idea to use a specialized term from cloud computing in a article about cloud computing meant to be viewed by a general audience, but that is no reason to get bent out of shape. Even the person who first complained about it, did understand what the author meant by the term.
"Modern country [music]", isn't that an oxymoron?
It only became an oxymoron when you added "[music]."
Sponge Bath wrote "modern country band."