The skins/skeletons fail to be imported into the scene. I believe this is because the skins/skeletons import section assumes that the order of the nodes are from parent to child. But in this GLTF file, some of the childs are ordered before their parents in ‘nodes’ e.g. mixamorig:HeadTop_End is in nodes index = 0 while RootNode/Hips are in index 15 and 16.
This GLB imports perfectly fine in Blender.