Honestly, the actual features look pretty good. The UI, as always, looks very slick and modern, the Capsules, particularly look extremely promising as a long-term feature that will greatly extend C4D's capabilities. Both are extremely time-consuming features to implement, so I can see why, on an accelerated release schedule, you would only have a couple of these.
Robust spline import is always a welcome feature, but hardly a major addition, but still, nice to have.
I guess the major issue is why prioritise the freaking UI? That would have been likely last on my list of things to tweak with in C4D. It already had a very good UI, and given what an enormous task rehauling a major app's UI is, why on Earth expend resources in that direction?
Anyhow, on a positive note, I am excited to see where Scene Nodes and Capsules are headed.