They said obtaining not beefing them up, which they are doing in this update.
They said exactly what I quoted. They're definitely going to make Relics and Mythics stronger so that they're "balanced" with Empyreans.
They're also going to either make Empyreans harder to get or relics/mythics easier to get or both (the last paragraph of what I quoted).
Basically, I don't think Kikoku Ninjas that went out and got Kannagi are going to have wasted their time.