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For a little bit of context, Robert Lang is what you could call a "modern master" of Origami. He's one of the author who promoted a "whole vision" approach to model design, using lot's of circle/square packing and a very scientific methodology. He's also the author of several books (and some software!) to explain how to design your own models using his techniques.

One of the reason the last model is a new scale of complexity might be that it somehow use "old school" techniques: There is now collapse, no circle packing, it's just straight traditional (hard!) folding from start to finish. Creating such complex models from the traditional tools is usually really hard. It also has a certain elegance to it that is often very pleasing.

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In my experience models made from crease patterns tend to be rather boring. Yes, it’s tricky and menial to collapse them, but once you’ve done a few, you can fold all of them. It’s a mechanical procedure, so much that these designs are usually generated with a software called TreeMaker, pioneered by Lang himself: https://langorigami.com/article/treemaker/