it's just the pop-sci writing style. You see this with lots of articles and content directed at a general audience - I think this author's just reused the same style to talk to a technical audience. It's not inherently condescending, it just comes across that way if you're writing for an audience of technical peers.

this kind of breathless style makes more sense when you don't expect the audience to be technically literate and the content is there to make them say "wow, I don't understand anything you're saying but there certainly are technical words in here!" - see, for instance, popular media around anything related to quantum mechanics.