DreamWorks Animation, not DreamWorks. That's a much smaller subset of the DreamWorks catalogue. Link bait.
I also don't think it adds a lot of additional information that isn't already there. They already have all the Starz content, which they'll likely be losing. But content owners have a model they can see currently. Adding a few additional animated films won't likely change much, and it will be at least 2 years before any meaningful results are out.
There's a much better chance that between now and 2 or 3 years down the road, that something else more significant takes place. Netflix, upon losing the Starz streaming rights, could be out of business. Individual studios could be doing streaming on their own, and finding success with that.