That's season 3 for you. We didn't get to see Olivers initial reaction to finding out about Laurel suiting up, we didn't see Laurel even suiting up. So many things just appeared out of a magic hat. Hopefully that is all corrected this season.
I really want to sit down with MG and co. ask them all these questions, but they just wanted more hype for the show and they went the biggest way they knew how. Sara should've been in some LoA gear, lacked the Canary cry, among other things.