Speaking only for myself (caveat: I'm not a representative fan), these two projects actually made me question whether or not Universal thinks anything needs to be "overhauled" about the park in the first place. Both would have been prime opportunities to begin addressing what some see as a key weakness of the park, but VillainCon is just another screen-based attraction, and DreamWorks is a cosmetic overlay of (mostly) stuff that was already there; an improvement in theme, certainly, but basically a wash in terms of improving the park's attraction roster.*
As I always say, in X-FILES parlance, "I want to believe." But until we get start to get some screen rides out of the park in favor of non-screen-reliant rides (or pure additions along those lines), I'm going to remain somewhat skeptical that the park is moving in the direction I'd like to see it move (which is a more balanced variety of attraction types).
* Mandatory "Yes, Epic Universe has been the priority up to this point" disclaimer.