You keep on using that word...
"While Google remains committed to industry-wide adoption of HTTPS, there isn’t always full compliance on third party ad networks and custom creative code served via our systems," blogged Googler Tristan Emrich.
Sorry, Tristan, but you clearly don't know what "committed" means.
Here's a hint: it doesn't mean you'll do it only if it doesn't cost you money. It doesn't mean you'll take the easy way out. It doesn't mean you'll recommend that people compromise security so you can continue to make money.