::::Hohum, I've already explained that: 1- established newspaper are "reliable sources", 2-the standard that every topic in an article should be guided by extension found in books is not reasonable, virtually half of WP would absolutely not pass this test and hence would have to be removed, 3- relevance in WP is measured by its mention in reliable sources, not only in books. 
 ::::"Something reported in a couple of newspapers doesn't suddenly make it relevant", this statement of yours, if applied indiscriminately all over WP, would be devastating. Please, check the Falklands Islands article and try to apply the standard of "extension measured by what books say" to sections like "Climate", "Biodiversity", "Demographics", "Infrastructure". All this sections would have to be removed according to that standard. This is not to mention entire articles like Falkland Islands sovereignty referendum, 2013 and virtually any article regarding the Israel-Palestine dispute (just to name a few). I just can't stress it enough: it is not a reasonable standard. 
 ::::I've proposed a standard to apply that lies in between "only what books say" and "everything found in reliable sources": we add only what we can source with two different reliable sources. I think this is a sensible standard to use. Regards.