I did a few rifts today and found they used individual rewards. It seemed like the individual rewards were mostly the new motes that are all unbound anyways so it seems like people will just farm these on alts so they can use free charges.
Since there is only one type of mote/celestial matrix from planar rifts rather than 6 there seems to be less importance on what of the 6 lure you choose. Maybe make it so each of the 6 different lures focus on specific mats or have a greater chance of getting the mats you want. example fire lure drops more mining mats- air lure drops more runecrafting mats.
I made a mining rune and it looked like its intended to reduce the time to mine things. The cast time to mine was reduced but the time for the ore to get looted is the same so you still have to stand still 1s after the cast ends to complete the mining.