The only things that have been shown are that an overly simplified CSP model of what the author is actually doing might work, that the author does not have a clear understanding of concurrency, and that the author is prone to making grandiose claims like "The matching of models means that CSP can be used to solve complex problems using core.async in a way that would be more difficult using another approach like functional reactive programming or actors", without basis.

In this particular case, uniquely-identified, timestamped property updates, with last-update-wins, for named objects, would have trivially worked, in any language, without the modelling complications. Actors, FRP and CSP are all capable of doing that, without error.