Basically a "don't expect to get the same content/freebies DMM does" originality. See the inventory expansions we didn't get on anniversary, or the walkure collab, and most likely, other stuff to come.
Don't see them doing any sort of original event, and frankly, I don't think I want to see some pussy saga collab either.
So? What was the whole inventory expansion stuff?
That does apply when it comes to benefits... but regarding hime skills? I really really doubt they'll deviate from that at all. My money's on Sol's lack of a dark resist burst effect was a fuck up on their part, as is any other missing skill we see in the future.
Of course, can't ignore Murphy's Law, but one can hope.