Matthew, I apologize. I thought you were referring to the ArcGIS for AutoCAD beta and I now see that you're talking about the released version. I don't have a ton of good news for you, but at least you'll know the answers. In these answers, I'm talking about the current release, not the beta.
re: WebMaps No, ArcGIS for AutoCAD doesn't consume webmaps directly. You can, however, add individual layers...if they are supported layers. The layers you reference are not supported layer types.
re: Tile Layers and Hosted Layers
The urls you provided to the constituent layers are what we would call "tile-only" layers. ArcGIS for AutoCAD doesn't support those types of layers. ArcGIS for AutoCAD does support dynamic map layers, and when publishing map layers to your enterprise server, you have options on whether to use fixed tiles or dynamic.
To make it more complicated for you, the layers you mention are on ArcGIS Online, and the current release of ArcGIS for AutoCAD only supports layers from an enterprise server, not hosted on a portal.
I hope this information more completely answers your question, although I know it really doesn't help you add these kinds of layers into AutoCAD.