You seem to have forgotten that they promised us two Ten chain tickets both of which are SR and higher.
Not the 10 chain SR and higher Kamihime, that is fine.
I'm talking about the 10 chain Premium that INCLUDES Rares. That is the one that should've been ALL SR or higher.
For anyone who haven't used it yet, go ahead and check the gacha content and you'll see that all the Rares are included in there as well.