Keirsey describes all SPs, Sjs, Nfs and NTs as a whole, and the result is the Artisan Description is very ESxP, the Guradian description very xSTJ, the Idealist description very INFx, and the Rational description very INTJ. SInce the descriptions are supposed to xSxP, xSxJ, xNFx, and xNTx, you really shouldn't completely relate to any of them.
On another note, it has often been said that ENFPs are half Artisan. Also, the Artisan temperament is kind of like a dark-side Idealist (and vice versa), so they kind of seem like our twins and our opposites at the same time.
And on an entirely unrelated note, if you're an ENFP 4, 6, or 7 Enneagram, these are also common types for Artisans, which may have something to do with what you experienced.