In looking at this I, too, would order them, as 1 teleport, 2 5hr and 3 8hr. I might suggest, as others have, that if the devs want to reduce them a bit to 2 teleport, 2 5hr and 2 hr 8hr so they are "weaker" than the mystery chests, that would seem reasonable.
In the end, it seems to me, that it's the amount of impact the changes would have that counts. To those in need of SF there would be no change overall in receiving SF. However, if the gates give out these three items then players will have more of these three items. In fact, all players who do the third tier would. But I don't know how strong the overall impact will be because I don't know how many players go to the top of the Spire or even do part of the third floor. I suspect, and it's only a hunch, the impact would be minimal overall. And thus, there is hope they will do it for us? (Let's be optimistic as it doesn't hurt and makes dreamers of us all).
In summary, if they have to reduce the amounts of each replacement item put into the gate chest to keep things more in balance, that would seem reasonable.
AJ