Those are really the only ones I can think of that bother me but it's the sites placement that is what makes it a terrible UX. They place all those ads around the actual download button. You would think you could get banned for trying to force a click like that.

I wouldn't put the blame on the site owners exclusively. Yes, they are responsible for location on the page. But Google puts a big green button labelled "download" on the page in the first place; that button would be confusing anywhere on the page. And obviously, these ads only show up on download pages, not on other types of pages.

There's no excuse: the site operator, the ad network, and the ad buyer all collaborate to deceive the user. Google could easily stop this practice, but they don't. "Do no evil, unless it affects the bottom line".