Sorry I could have been clearer. The archive.org page that shows all scans[1] will mark dates as orange (4xx), green (3xx), or blue (presumably 2xx). The reason I don't think that the link you posted is indicative of something is that all the scans of that url resulted in 4xx's. As opposed to scans of index.php[2] which primarly show 2xx responses. Any framework, Coldfusion or not, will generally throw a 404 when you hit paths that don't exist.
But wouldn't an index.cfm have existed at some point for the archive to flag specific years with an entry? It's the archive doing the scanning, not me.