This was an old Rabbinical tradition, which (if I recall correctly) pre-dates both Christianity and Gnosticism, making collections of sayings.......it reflects nothing particularly Gnostic, nor does it reflect any mythologizing in other gospels
like proverbs, yes. you're ignoring the importance of the observation. gnostics were more concerned with the wisdom and teaching of christ, and not his actions, miracles, or death/resurrection. since thomas records only sayings, it is likely the have been a gnostic text.
no one's debating that it's in a pattern of an older tradition, i'm simply saying that because it follows this pattern, it's more likely to be gnostic than otherwise.
And very Christian......."I will be with you always, even until the end of the Earth."
the two are not entirely separable. gnostics were a sect christians. their traditions are christian, just not the sort we follow today. at the same time, you can't entirely pull the gnosticism out of the existing canonical texts, particularly not after the resurrection.