No, it's not. If anything, it's opting out of interfering in domestic affairs.

Facebook is not an official channel. The elected official has many other platforms, including the country's media, that will publish their message. They can create a blog if they want.

If Facebook is the only viable channel for reaching a large part of the electorate, the core issue is having only that one channel. You solve it by forcing competition, not by stifling Facebook's right to decide what they want to allow on their platform.

I deeply loathe Facebook and think they're undermining democracy in every country, but there should never be a way for a government to force a publisher to distribute an ideology that the publisher disagrees with.