I believe he's in need of a buff.
He's really squishy for a tank.
Beside his Q, his other spells are so easy to predict and dodge it's not even funny.
He has trouble queuing spells one after another. (Seriously it's so hard to cast W right after landing with ult. You press and hold W, but it doesn't work, so you press on it again, and you end up wasting precious seconds.)
He feels useless in teamfights, all you do is cast Q every 6 seconds, which barely deal any damage once mid/lategame hits (unless you built full AP, which is not optimal) and hope to hit a taunt or an dash, WHICH IS REALLY HARD.
It seems like his only strenght is a decent early game burst IF he succeeds his whole combo, and the ability to come to the rescue of an ally with ult.
His ult feels useless lategame, it barely does any damage and the knockup is so short for such a long cast time.
Unlike old Galio, you can't make a clutch ult/taunt anymore, his full burst isn't as good, and he lost his W sustain.
Also remember he just got released, people aren't used playing against him so they get caught and surprised. Remember that some people actualy thought Bard was OP on his release, which is hilarious as he was probably the weakest champ on release ever.