Since the merge of many of the servers it's near impossible to even enter Port Jeuno, let alone move around without a major lag per each movement.
This alone makes it hard to trade in Seals or Crests, without mentioning even getting an orb to do any of those new BCNM's.
What is really needed is either more NPC's that will accept trades and the Orbs in the main cities or Shami moved to a less congested zone than Port Jeuno.