Coincidences happen all the time, but targeted ads like those still differ from general audience ads. Just because instead of audio it is spying using metadata and keywords doesn't make seem any less invasive.

> Attributing them to spying is a ticket to a level of paranoia that some people have a very hard time finding their way back from.

I'll state again that I don't believe FB is actually listening in on phone conversations, but to the majority of their users, they may as well be doing just that. It is all just spying, only using different sources.