Going from SAM to MNK is honestly such a downgrade. There is no surprise in how it is a largely more popular job than it. It always has something to build up or build towards. Whether it be Kenki, Sen or Shoha. What does monk even have? Chakra? You don't even have control over how you obtain it since it's stuck behind two layers of RNG. There is literally nothing to do when playing MNK besides waiting for Brotherhood/Riddle of Fire/Perfect Balance to come off cooldown. Between that, it's hitting the same 6 weaponskills (since 3 are dedicated to AoE only) for about 90 seconds.