Is this a good argument? Why or why not?

At the end of Chapter 9, Krakauer describes Irish monks known as the papar who sought out lonely places so such that they left Iceland for Greenland when some Norwegians showed up because they thought that it had become too crowded, even thought the land was nearly uninhabited. Krakauer writes "Reading of these monks, one cannot help thinking of Everett Reuss and Chris McCandless" (97). Krakauer implies that there is some kind of similarity between Reuss, McCandless and the papar, but instead of making a specific connection, he just says, "one cannot help thinking of." Is this a good argument? Why or why not?