Why the requirement of significant coverage should not be a criterion for notability[edit]
Significant coverage is a relative concept. One topic, e.g. Albert Einstein, may have more significant coverage than another topic, e.g. Franklin Edgerton, and that is usually because the former is more notable than the latter. While a whole life biography may be written on the former, only a paragraph of an article may be written on the latter. But does that stop Wikipedia from having a stand-alone article on the latter? It surely does not. Then why should anything at all stop Wikipedia from having a stand-alone article on a topic that has received trivial coverage in independent reliable source/s? If Wikipedia may have 100 page long, 50 page long, 10 page long, or even just 1 page long stand-alone articles, why may it not have a stand-alone article with just 1 possible sentence, such as an article on Three Blind Mice with just 1 sentence description that "Three Blind Mice is an American jazz band of which Bill Clinton, in high school, was notably a part of." Does such article, however short it may be, not serve Wikipedia’s ultimate purpose? It does. Is such article not useful? It is. In other words, if a topic has received coverage (i.e. it is noticed) in independent, reliable, and verifiable source/s, however big or small, significant or insignificant the coverage may be, the topic could be considered to be notable, i.e. capable of being noted or worthy of notice, and thus Wikipedia may have a stand-alone article on that topic. Also, if Three Blind Mice, for example, does not have a stand-alone article, and is only mentioned in an article on Bill Clinton, it makes it difficult for potential readers to find the Wikipedia information on Three Blind Mice through a search engine such as Google.
Another problem is that, because of the unclear drafting of WP:N, some participants at AfD will argue that no matter how much coverage there is, it is not significant.
In short, regarding "notability", a topic may be presumed notable (i.e. capable of being noted or worthy of notice) if it is noticed in one or more independent, reliable, and verifiable sources.