Deletion of The Fat Controller

Comment: There was a brief discussion following the nominator's previous PROD on this article: :Talk:The_Fat_Controller#Query_on_notability. As I said in that discussion, my concern is that "The Fat Controller" is often used in wider discussions, from The Economist to the Daily Telegraph (and again more recently: https://www.telegraph.co.uk/business/2020/11/07/network-rail-boss-lined-lead-fat-controller-rail-shake-up/ Network Rail boss lined up to lead ‘Fat Controller’ rail shake-up"); the nominator queried whether that establishes it as more a . I see that point but think there is enough usage, ranging from specific to the Awdry books and subsequent media, through the "Other Uses" listed in the article, to its frequent referential usage in broader discussion of UK rail management to merit a distinct article. (There is also the re-purposing of the character in Will Self's :My Idea of Fun, a secondary reuse discussed in various sources such as https://books.google.co.uk/books?id=av15DwAAQBAJ&lpg=PA295&pg=PA295 this
Stance: keep
Cited policy: Wikipedia:Wikipedia is not a dictionary (:WP:DICDEF)