I do can complete it but its impossible for casual players
I think the length of the Rift is fine, i wouldn't want it to last longer than it already is.
If it's too much for casual players, then i prefer for adjustments to be made within the current timeframe.
I'm afraid of not completing the rift! We need more time!
While I understand some people have a hard time completing the rift, others, like me, do not, so I think the lenght of time the rift is open is fine, but I would add more challenges or give more fragments for completing them, making it easier for people to rank up.
im a casual player and i easily got to tier 70 playing solo with 16 days to spare