Agi has an EP value of 2.5 for me. 12 Agi = ~30 EP.
Hit has an EP value of ~1.4 for me, before the cap. The hit is worth ~89 EP. Furthermore, some of this can be reforged into Mastery.
Sandshift is better than the valor relic. Saying "I am already reforging 200+ hit" is irrelevant. I've got nearly 500 reforged, that doesn't mean the gear with hit isn't generally strictly better than the other options.