Seems like void of any substance if one takes whatever flavor of monism for granted. Just because everything is supposed to be build on the same fundamental building blocks/fluxes/whatever doesn’t mean every phenomenon is caused by constructions of equal complexities.
That is, life referring to something inherently far more complex than inert assemblies remains perfectly valid in many monist perspectives.
[edit: took life rather than consciousness as an example, but the stated argument in the article seems to be equally applicable relevant for both concept, or any concept that suppose that emergent complexity is possible]