There's related discussion on this here:
https://news.ycombinator.com/item?id=13325507Not only is it apparently banned from the store, but also it's being removed from existing user's machines, on top of not allowing new installs.
Edit: Going to quote my thread from that discussion as this announcement confirms they were banned over the single use policy...
> Other ad blockers "block ads" and "block annoying eu cookie notices". Should they be removed?
> I just visited the Chrome store and chose the first extension: https://chrome.google.com/webstore/detail/office-online/ndjp.... It makes word documents AND spreadsheets?!
> Hopefully you can see where I'm going... whatever's written in the policy is difficult to enforce literally. Someone has to make the distinction based upon the intent of that policy. A person has to draw the line. If Google have made the decision based on that policy, well that's their decision.
> Reading https://developer.chrome.com/extensions/single_purpose (part 4) makes me thinking "disrupting ad networks" could be that single purpose. Then it'd cover blocking & clicking. Just like "Office Online"'s "edit office documents" covering both "word processing" and "spreadsheets".