I wonder where all the hate for BLM was when they were replacing SMN in FCoB?
BLMs didn't seem to have a problem with them being more optimal for FCoB than a SMN was - but wait! Now that 60 content is here and 2 fights require movement, which SMN has always naturally done better than a BLM, BLMs are having a fit.
Don't judge your job based on two EX primals.
BLM are a still a single target powerhouse - and they still own the title of consistent AoE damage. (SMN only has burst AoE)