A perseus composite is sewn together which increases the toughness of the material. https://www.hulu.com/watch/224859/nas...als#s-p1-so-i0 the composite part starts 15 minutes into the video.

they are replacing fasteners with stitches, so I'm not sure that it's really going to have a significant effect on bicycle frames. An aircraft is generally put together from structural elements that are all made separately and bolted together. If you build larger assemblies, you skip a lot of fasteners. Composites generally don't work well with fasteners.