Fake news was a massive problem this election cycle, and it really highlighted Facebook's large influence and their inability to actually do anything about it. So yes, Facebook dealing with fake news here is a reaction to what happened during the election, but that's not a bad thing. Fake news turns out to be a serious problem and it needs to be fixed, regardless of your political leanings.

Edit: Why am I being downvoted for this? If you disagree with me, please explain why.