Lol of course not. The official Sonic Facebook account probably got it from the official Sonic Twitter account, which is the most hilarious, near trollish thing in existence.
This is what they do on a regular basis:
Not pictured here: "Deez". #NationalNutDay pic.twitter.com/UlxjCySSEs
— Sonic the Hedgehog (@sonic_hedgehog) October 22, 2015
Happy #NationalStressAwarenessDay! pic.twitter.com/IgpDBpqt53
— Sonic the Hedgehog (@sonic_hedgehog) November 4, 2015
Dear @LaurakBuzz : It's the latter. Most definitely the latter. pic.twitter.com/ugpnpkNYuf