Except Facebook says:
"The vast majority of ads run by these accounts didn’t specifically reference the US presidential election, voting or a particular candidate."
And:
"About one-quarter of these ads were geographically targeted, and of those, more ran in 2015 than 2016."
And:
"44% of total ad impressions (number of times ads were displayed) were before the US election on November 8, 2016; 56% were after the election."
And:
"Roughly 25% of the ads were never shown to anyone. That’s because advertising auctions are designed so that ads reach  people based on relevance, and certain ads may not reach anyone as a result."
.
So, these non-political ads mostly ran after the election, while those that ran before the election mostly ran in 2015 - meaning they weren't really even seen during the election campaign.
.
It's a big nothingburger with extra nothing.