Everything we've seen in Amok Time regarding T'Pring, including purposefully trying to get people killed, would indicate that she is. Admittedly SNW T'Pring seems to be a different character, but in the end she ultimately becomes TOS T'Pring so...
Nothing about "Amok Time" implies that T'Pring is shallow. Devious and an asshole, sure. But that's an entirely different negative trait than shallowness.