"therefore beyond" is correct and usable in written English.
You can use it to indicate a logical consequence of something that has been stated previously. For example: The issue is complex, and therefore beyond the scope of a single article.
It was therefore "beyond dispute that the information possessed by the agents before they entered the apartment constituted an independent source for the discovery and seizure of the evidence now challenged". Ibid.
Julie Christie is, of course, Julie Christie, and therefore beyond the confines of this article.
And, finally, the violence caused by the crowd was a police issue and therefore beyond OSHA's jurisdiction.
Just a few years ago cancer seemed to be beyond comprehension, and therefore beyond any logical cure.
One might have supposed that miracles were beyond proof and therefore beyond argument, but Hume didn't think so.
But with intellectual feats, some people see that as beyond their understanding and therefore beyond their reach.
That such tax is upon property and rights outside of Kansas, and, therefore, beyond its jurisdiction for purposes of taxation.
They came to believe José Contreras was their sturdy bridge to Mariano Rivera and therefore beyond Boston and on to the World Series.
In 1965, many of us believed our elected officials were privy to deep secrets we could never understand, and therefore beyond criticism.
However, a reorganisation of the governance structure of BBC Worldwide in September saw Smith removed from the executive board and therefore beyond the scope of Thompson's review.
The boys, after all, had been legally adopted and were therefore beyond the scrutiny of child welfare officials, as the couple's biological children were.
