It's about time google crack down on these ads. The download button is just one of the many tactics. Any ads that show a guy with biceps three times the size of his head should also be banned. Yahoo is infested with these "sponsored" ads, and pretty much any other site that lives on ads revenue only.
Pretend to act, or look and feel, like a trusted entity — like your own device or browser, or the website itself.
These are deceptive tactics, intended to confuse and trick.
What you describe is annoying and perhaps exploitative of humans desires, but in the end no different from normal advertising and far less evil than the ads described in the quote above. You want a full ad-blocker. Perhaps you're already using one and want to justify it.