Reading your link, it appears that the author just flatly assumes that space is not expanding, and everything else stems from that assumption.
The author provides another article to attempt to support that assumption, but their argument for that is incomplete, and while their alternative appears to offer explanations for some observations, it ignores other things (like cosmological redshift). Add in the fact that that the article appears targeted towards laypeople and there's no scientific paper to be found suggests that it's more psuedoscience and thought experiments than actual scientific investigation.
It seems unreasonable to claim that academia would reject the idea out of hand when no-one's even written a paper to attempt to submit to a peer-reviewed journal. I suspect the reason academia ignores the supposition is not commercial interest like you claim.
The author provides another article to attempt to support that assumption, but their argument for that is incomplete, and while their alternative appears to offer explanations for some observations, it ignores other things (like cosmological redshift). Add in the fact that that the article appears targeted towards laypeople and there's no scientific paper to be found suggests that it's more psuedoscience and thought experiments than actual scientific investigation.
It seems unreasonable to claim that academia would reject the idea out of hand when no-one's even written a paper to attempt to submit to a peer-reviewed journal. I suspect the reason academia ignores the supposition is not commercial interest like you claim.