Well, it's a little disappointing that the late SR units can't catch up with the SSR units. I remember some characters getting their own SSR versions later in Destiny Child, so I hope that's the case here as well. It would be a waste if the design remained unused.
But it still means that it becomes much more important to look for favorite duplicates again and look for banners that expose your team.
I'm not sure I like the idea that new characters become useless while waiting until they reach a certain camo level. Hmm, I hope the time limit for later events isn't so strict.