It may be that the more concrete boundaries that having multiple instances provide can dampen down the cascades caused by the small world network effect. It is an interesting model to coexist between the silos with global scope and the personal domains beloved by the indieweb. In indieweb we have been saying ‘build things that you want for yourself’, but building things that you want for your friends or organisation is a useful step between generations.
I'd say not just interesting, but also crucial. Where T and FB operate at generic level (despite FB pages as subgroups), the statistical, and IndieWeb on the personal (my site, my self-built tool), M works at group level or just above (bigger instances). That middle ground between singular and the statistical is where complexity resides and where it needs to be addressed and embraced. The network metaphor favors that intermediate level.
I don't know whether it is the dark that seeps through or the light. Or both.