Are those Google ads? That's the only ad-related script I can find on the page. One of the ads says it comes from "MediaGo", but the iframe seems to be served from googlesyndication.com.

If so, I'm glad we have such a trustworthy company keeping Android users safe from malware by preventing us from installing our own software, all for our own good.

Not saying it’s a good pattern, but plenty of things that have been worth installing in the past like Daemon Tools had questionable ads, assumably to fund development.

Also, my ad was for Vegas. You just happened to get served a worse than usual advertisement.