Yep. The engine's going through growing pains and getting these compute shaders and other things to behave is a big job. Recent sneak peaks have demonstrated numbers of issues that are being and have been addressed. It's entirely reasonable for progress on the terrain graphics to be where they are. I think most people get this.
What I personally don't get is the idea that it's an artistic decision, rather than a technical or resources (time/money) issue for things to look the way they are currently. People say that rocky planets probably shouldn't look rocky because there's no weathering on atmosphere-less worlds to make things interesting. Or that we don't know what an ice world might look like. That gets to me because it goes somewhat against the excitement of the current time when we're getting all these great images from the planets and moons in our own system. These worlds are complex and awe inspiring. The moons of Jupitor alone look totally unique and interesting...
https://moonipulations.files.wordpress.com/2013/09/moons.png
I'm not going to judge horizons graphics but I'm also not going to defend blandness. The current state of things is the current state of things. That's all you need to say. These other arguments floating around are just weird.
Agreed. But Europa in the game looks really close to those images. So it's likely that we can ignore people who claim otherwise.
As pretty as it looks from space, it's just not going to have such a cool palette when you're 100m from it. It's going to look bland compared. Just like the ground you and I stand on looks bland compared to the amazing views of Earth from space.
Lighting is also important.