Which is hilarious because the reason I can't switch The New Yorker website to HTTPS is because of ads - which I'm getting from Google DFP which allows non-secure ad assets. In short; Google will penalize me because I use Google. The universe has a sense of humor.
Similarly, Google claimed they would start penalizing websites that showed full-page ads for mobile apps instead of showing you the website. But every single time I try to get to Gmail, or Drive, or Calendar, or any Google service on the web using a mobile device, I'm shown a full page ad for a mobile app. Google has been doing this for years, and it seems like it's also been a year since they said they'd punish all…
Well in your screenshot it seems like you scrolled down on the "calendar" search results. I get some other random thing ahead of Google Calendar, in incognito or not.
It is really annoying (I too hate those things, I would have installed the app if I wanted the app), but the click through thing only happens once in my testing. Are you clearing your cookies regularly?