Well, at the very least they threw starter dragons/late bloomers a bone by making Legendary Dragons a normal dungeon.
I mean, the legendary dragons themselves are skillup materials for the starter dragons/late bloomers, and the starter dragons themselves can drop in these dungeons in their second form at level 10 - which means that one dragon plant, one tier-1 lit and 8k-ish experience is enough to evolve them for a second skillup mat.
So there's that, at least. The only problem is that by the time you clear OoH starter dragons are probably no longer enough to get you through the content, though there may be some merit to skilling up the Late Bloomers if you intend on using their trifruit uvos.