I actually think the Freebird boxes are pretty generic looking. I was just in a local shop that has a bunch of styles on sale -- this is where I bought my Quails and I am quite sure they are legit -- and they had a pile of the boxes stacked up. Very basic brown corrugated cardboard.
And I agree that the shoes are definitely handmade, not refined, and likely to be rougher around the edges than other shoes.
So glad these are likely real. I buy a lot from Amazon and have never gotten anything fraudulent but it is a good reminder to be vigilant.
Have you decided whether or not to keep?