Archinode checked in on this old post to cite some (pre-Laffoley) influences on the Fab Tree Hab.
The Primitive Hut concept of Marc-Antoine Laugier, from 1753.
Arthur Wiechula’s “Living Trees Grow into Homes” (1923) Arthur Wiechula article on Design Boom
More info: Archinode’s Fab Tree Hab page which includes a full list of references.