Yeah it is a rough grind, I managed to complete all of mine by rank 50. Estimating around 20 hours of gameplay. In all honesty with how strong both the round robin and phyllotactic spiral are in their craftable forms I would say this is probably acceptable…. Although I am sure most would disagree, I also felt the same until I had them crafted and was using them in trials. Both of them absolutely slap in PvP, not to mention both look amazing with the trials momento on them.