Well it's not a big help but it's still something. I think it's just SE being overly cautious since they are just introducing the reforged relic. I'm guessing by Campaign 9 or 10 it will be cheaper.
Yeah they took it out and replaced it with Kupon for seals.. from the description I'm guessing one Kupon I-Seals will give you all the seals needed for the +1 of one empy armor.