That's more than merely disappointing - that's just plain dumb. The decks in EACH box are identical! It makes the question "Why two deck names?" even more relevant.
I have serious doubts that this deck will hit its rather high goal of $20,000. If it does, there's a lot of gullible people out there. He states in the FAQ: "The intent is to portray both Seelie and UnSeelie so that backers can see these deadly Fae in all their glory. We thought it would be a cool idea to show both light and dark Fae on the cover. So choose Seelie, UnSeelie, or both if you're a collector!" So this begs the question, "Why not just put the Seelie on the front of the tuck box and the UnSeelie on the back?" By making two boxes, he increases his costs - though certainly not to the level that he's requesting in funding.
Dumb, dumb, dumb. Terrible planning, worse budgeting.